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The History of Honey — The Food That Never Dies — Transcript

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  1. 0:00In 1922, archaeologist Howard Carter
  2. 0:03broke through a sealed doorway in
  3. 0:05[music] the Valley of the Kings near
  4. 0:06Luxor, Egypt. Inside the tomb of the
  5. 0:09pharaoh Tutankhamun, he found gold,
  6. 0:12jewels, and furniture untouched for over
  7. 0:143,000 years. But among all that
  8. 0:17treasure, his team found something
  9. 0:19stranger. Sealed inside alabaster jars,
  10. 0:22buried beside a dead king as if it were
  11. 0:25as precious as gold, was honey. And when
  12. 0:28they opened those jars, the honey was
  13. 0:30still perfectly edible. 3,000 years old,
  14. 0:33[music] and you could have spread it on
  15. 0:35toast. Every other food on the planet
  16. 0:37rots. Bread molds. Meat decays. Fruit
  17. 0:41turns to mush within weeks. But honey
  18. 0:44just sits there, centuries passing,
  19. 0:46empires collapsing around it, and it
  20. 0:49refuses to go bad. So, how does a
  21. 0:51substance made by insects [music]
  22. 0:53outlast entire civilizations? And how
  23. 0:56did this sticky golden liquid become one
  24. 0:59of the most valued [music] substances in
  25. 1:01human history?
  26. 1:02That answer starts long before the
  27. 1:04pharaohs.
  28. 1:06Long before Egypt even existed as a
  29. 1:08civilization. In 1921,
  30. 1:11a year before Carter found Tutankhamun's
  31. 1:13tomb, a group of researchers exploring a
  32. 1:16limestone cave [music] near Valencia,
  33. 1:18Spain, found something painted on the
  34. 1:21rock wall.
  35. 1:21>> [music]
  36. 1:22>> The painting showed a human figure
  37. 1:23clinging to the side of a cliff,
  38. 1:25reaching into a hole in the rock face,
  39. 1:27while a swarm of bees circled around
  40. 1:29them. In their other hand, they held a
  41. 1:32basket. They were collecting honeycomb,
  42. 1:34and they had clearly climbed a very long
  43. 1:36way to get it. That cave painting, found
  44. 1:39at a site called Cueva de la Araña,
  45. 1:42which translates to cave of the spider,
  46. 1:44is roughly 8,000 [music]
  47. 1:46years old. It is one of the earliest
  48. 1:48known depictions of humans interacting
  49. 1:50with bees.
  50. 1:51And it [music] tells us something
  51. 1:53important. Before we had agriculture,
  52. 1:55before we had writing, before we had
  53. 1:57metal tools, or pottery, or permanent
  54. 2:00settlements, we were already risking
  55. 2:02[music] our lives climbing cliff faces
  56. 2:04for honey. Similar rock art has been
  57. 2:06found in Southern Africa, in India, and
  58. 2:09in Australia.
  59. 2:11Across every continent [music] where
  60. 2:12bees existed, early humans figured out
  61. 2:15the same thing independently. Whatever
  62. 2:17was inside those hives was worth the
  63. 2:20pain of getting stung dozens, sometimes
  64. 2:23hundreds, of times.
  65. 2:24And humans were not species that
  66. 2:27recognized honey's [music] value. Across
  67. 2:29sub-Saharan Africa, a small brown bird
  68. 2:32called the greater honeyguide developed
  69. 2:34one of the strangest partnerships in the
  70. 2:36animal kingdom. A partnership that
  71. 2:38lasted tens of thousands of years. The
  72. 2:40bird would locate a wild beehive high in
  73. 2:43a tree, or inside a rock crevice. Then
  74. 2:45it would deliberately seek out a human.
  75. 2:47It would call [music] out with a
  76. 2:49specific chattering sound, flutter from
  77. 2:51branch to branch, and lead the person
  78. 2:53directly to the hive. The human would
  79. 2:56follow, build a fire, use the smoke to
  80. 2:59calm the bees, crack open the hive, and
  81. 3:02[music] take the honey.
  82. 3:03Then they would leave the wax and larvae
  83. 3:05behind for the bird.
  84. 3:07This was [music] not trained behavior.
  85. 3:09It was a relationship that evolved
  86. 3:11through natural selection over an
  87. 3:13enormous span of time [music] between
  88. 3:15two completely different species built
  89. 3:17entirely around one substance. Honey was
  90. 3:20so valuable that it literally shaped the
  91. 3:22evolution of another animal. For early
  92. 3:25humans, honey was quite literally
  93. 3:27irreplaceable. It was the only
  94. 3:29concentrated source of sweetness
  95. 3:31available anywhere in the natural world.
  96. 3:34Ripe [music] fruit offered some sugar,
  97. 3:36but it was seasonal, unpredictable, and
  98. 3:39diluted with water and fiber. Roots and
  99. 3:42tubers provided starch that the body
  100. 3:44could convert to glucose, but the
  101. 3:46process [music]
  102. 3:47was slow and inefficient. Honey was
  103. 3:49different. It delivered pure,
  104. 3:51concentrated, immediately available
  105. 3:54energy in a compact package that did not
  106. 3:56spoil. It could be found year-round in
  107. 3:59tropical and temperate climates, and it
  108. 4:01stored safely for months [music] without
  109. 4:03any preservation effort. It provided an
  110. 4:06incredibly dense burst of [music]
  111. 4:07calories, and the effort required to
  112. 4:09harvest it, climbing trees and cliff
  113. 4:12faces, enduring hundreds of stings,
  114. 4:14smoking out aggressive colonies,
  115. 4:16>> [music]
  116. 4:16>> was worth every second of pain.
  117. 4:19Anthropologists believe that honey may
  118. 4:21have played a direct role in human brain
  119. 4:23development. Our brains consume [music]
  120. 4:25roughly 20% of our total daily caloric
  121. 4:27intake, despite making up only about 2%
  122. 4:30[music] of our body weight. The glucose
  123. 4:32in honey would have been one of the most
  124. 4:34efficient fuel sources available to
  125. 4:36early hominids. Some researchers have
  126. 4:39even proposed that reliable access to
  127. 4:41honey helped push our ancestors toward
  128. 4:44larger, more energy-demanding brains
  129. 4:47over hundreds of thousands of years. If
  130. 4:49that theory holds up, honey did not just
  131. 4:52feed us. It may have helped make us who
  132. 4:54we are. But collecting wild honey was
  133. 4:56dangerous and unpredictable work. You
  134. 4:59had to find the hive first, then figure
  135. 5:01out how to reach it, then endure the
  136. 5:04fury of thousands of defensive bees. And
  137. 5:06at some [music] point, someone figured
  138. 5:08out there had to be a better way. The
  139. 5:10ancient Egyptians were the ones who
  140. 5:12cracked it roughly 4,500 [music]
  141. 5:15years ago. Along the fertile banks of
  142. 5:17the Nile River, Egyptian beekeepers
  143. 5:19built cylindrical [music] clay hives,
  144. 5:21stacking them horizontally in rows that
  145. 5:23looked almost like wine racks or clay
  146. 5:25pipes. These hives were designed to
  147. 5:28mimic the hollow logs and rock crevices
  148. 5:30[music]
  149. 5:30where wild bees naturally nested, and
  150. 5:33the bees moved in willingly.
  151. 5:35What made the Egyptian approach
  152. 5:37remarkable was its scale and
  153. 5:39sophistication. Some beekeepers loaded
  154. 5:41their hives onto barges [music] and
  155. 5:43floated them up and down the Nile,
  156. 5:45following the seasonal bloom of
  157. 5:47wildflowers, so their bees always had
  158. 5:49fresh pollen to work with. This was
  159. 5:51organized, deliberate, commercial
  160. 5:54beekeeping, [music] and it was happening
  161. 5:56more than 2,000 years before the Roman
  162. 5:58Empire existed. Honey in Egypt was not
  163. 6:01just food. It operated as currency,
  164. 6:04medicine, and sacred offering all at
  165. 6:06once.
  166. 6:07Workers at construction sites, including
  167. 6:09the laborers who built the Great
  168. 6:11Pyramids at Giza, were sometimes paid in
  169. 6:13jars of honey. Egyptian physicians used
  170. 6:16it to treat wounds, mixing it with
  171. 6:17[music] animal grease and plant fibers
  172. 6:20to create bandages that modern
  173. 6:21researchers have confirmed were
  174. 6:23surprisingly effective. Medical texts,
  175. 6:25[music] written on papyrus scrolls, some
  176. 6:28dating back to roughly 1,500 years
  177. 6:30before the common [music] era, list
  178. 6:32honey as an ingredient in over 500
  179. 6:35different remedies. They prescribed
  180. 6:36[music] it for eye infections, stomach
  181. 6:39ailments, burns, skin diseases, and
  182. 6:41surgical [music] wounds. And here is the
  183. 6:43thing that gets you. Modern science has
  184. 6:46validated many of these treatments.
  185. 6:48Honey has genuine, measurable
  186. 6:50antibacterial properties. The Egyptians
  187. 6:53figured this out through trial, error,
  188. 6:55and observation, thousands of years
  189. 6:58before anyone understood what a
  190. 6:59bacterium even was. Then, there was the
  191. 7:02religious dimension. Egyptians offered
  192. 7:05jars of honey to their gods,
  193. 7:07particularly to Min, the god of
  194. 7:09fertility, and to Ra, the sun god. The
  195. 7:12bee itself became a royal symbol, woven
  196. 7:15into the fabric of Egyptian identity.
  197. 7:17The pharaoh's formal title [music]
  198. 7:19included the phrase, "He of the sedge
  199. 7:21and the bee," linking the ruler of all
  200. 7:24Egypt directly to this tiny insect. When
  201. 7:27a pharaoh died, honey was placed in the
  202. 7:29burial tomb alongside [music] gold,
  203. 7:32precious stones, and weapons, because
  204. 7:34the Egyptians believed the afterlife
  205. 7:36required sustenance. And if you [music]
  206. 7:38were going to eat for eternity, you
  207. 7:40wanted something that would last
  208. 7:42forever.
  209. 7:43>> [music]
  210. 7:43>> As it turns out, they chose the one food
  211. 7:45on Earth that actually could. Egypt was
  212. 7:48far from the only ancient civilization
  213. 7:51captivated [music] by honey. Travel east
  214. 7:53to ancient India, and honey appears
  215. 7:55throughout the Vedas, sacred Hindu texts
  216. 7:58dating back roughly 3,000 years.
  217. 8:01Ayurvedic [music] practitioners
  218. 8:03prescribed honey for digestive problems,
  219. 8:05respiratory infections, and wound care.
  220. 8:08In Hindu mythology, [music] the god
  221. 8:10Vishnu was often depicted as a bee
  222. 8:13resting on a lotus flower, and the god
  223. 8:15Krishna was frequently associated with
  224. 8:18the color of dark honey. Travel further
  225. 8:20east to China, and honey shows up in
  226. 8:22medical texts from the Han Dynasty,
  227. 8:25roughly 2,000 years ago, recommended as
  228. 8:27[music] a treatment for fatigue, chronic
  229. 8:29pain, and poisoning. The legendary
  230. 8:32Chinese physician Shen Nong reportedly
  231. 8:34classified honey as a superior medicine,
  232. 8:37[music] meaning it could be taken
  233. 8:39long-term without harmful side effects.
  234. 8:41But, it was in ancient Greece where the
  235. 8:43cultural obsession with honey reached
  236. 8:45its peak. The Greeks believed bees were
  237. 8:48messengers from the gods. They called
  238. 8:50honey the food of the divine, and
  239. 8:51associated it with wisdom, [music]
  240. 8:53eloquence, and immortality. The Oracle
  241. 8:56at Delphi, the most important religious
  242. 8:58site in the entire Greek world, was
  243. 9:00sometimes referred to as the bee.
  244. 9:03Priestesses who served at the temple
  245. 9:05were called melissae, a word that
  246. 9:07literally translates to honeybees.
  247. 9:10Newborn babies were anointed with honey.
  248. 9:12The dead [music] were sometimes
  249. 9:13preserved in it. Honey touched every
  250. 9:15stage of a Greek life. Aristotle, one of
  251. 9:19the greatest thinkers in human history,
  252. 9:21spent years carefully observing bee
  253. 9:23colonies and documenting [music] their
  254. 9:25behavior. His observations were not
  255. 9:27always accurate. He believed the queen
  256. 9:29bee was actually a male king, for
  257. 9:32example. But, his writings represented
  258. 9:34one of the earliest attempts at
  259. 9:36systematic biological study, and the
  260. 9:38fact that he chose bees as his subject
  261. 9:41[music] tells you something about how
  262. 9:43central they were to Greek intellectual
  263. 9:45life. Athletes competing in the ancient
  264. 9:48Olympic Games ate honey before their
  265. 9:50events as an energy source, a practice
  266. 9:52that modern sports nutrition has
  267. 9:54essentially validated. Soldiers carried
  268. 9:57honeycombs into battle, and Hippocrates,
  269. 9:59the father of Western [music] medicine,
  270. 10:01prescribed honey for fevers, wounds, and
  271. 10:04ulcers. When Hippocrates wrote that
  272. 10:06honey cleans sores and ulcers, [music]
  273. 10:08softens hard ulcers of the lips, and
  274. 10:11heals running sores, he was writing a
  275. 10:13medical recommendation that wound care
  276. 10:16specialists in modern hospitals would
  277. 10:18still largely agree with [music] today.
  278. 10:20The Romans inherited the Greek obsession
  279. 10:22with honey, and being Romans, they
  280. 10:25industrialized it. Wealthy Roman estates
  281. 10:27maintained large apiaries with hundreds
  282. 10:30of hives. Beekeeping became a respected
  283. 10:32branch of agriculture, written [music]
  284. 10:34about by scholars and practiced by
  285. 10:36landowners across the empire. Virgil,
  286. 10:39arguably Rome's greatest poet, devoted
  287. 10:42the entire fourth book of his Georgics
  288. 10:44to bees. He described their colonies
  289. 10:46with a reverence that bordered on
  290. 10:48worship, comparing the hive to an ideal
  291. 10:50society, disciplined, productive, and
  292. 10:53selflessly devoted to the common good.
  293. 10:55[music]
  294. 10:56Roman soldiers used honey to preserve
  295. 10:58fruit during long military campaigns.
  296. 11:01Wealthy Romans poured it over roasted
  297. 11:03game, mixed it into spiced wine, and
  298. 11:06used it as the primary sweetener in
  299. 11:07virtually all of their cooking. Refined
  300. 11:10[music] sugar from sugarcane would not
  301. 11:12arrive in Europe for another thousand
  302. 11:14years. Until then, honey was the only
  303. 11:17option. And throughout all of this,
  304. 11:19across thousands of years and dozens of
  305. 11:21civilizations, one strange fact remained
  306. 11:24constant. Honey never [music] spoiled.
  307. 11:27Not in Egyptian tombs. Not in Greek
  308. 11:29amphoras sealed with wax. Not in Roman
  309. 11:32cellars. People noticed this. People
  310. 11:35relied on it, but nobody could explain
  311. 11:37why.
  312. 11:38That explanation [music] would take
  313. 11:40roughly 2,000 more years and the
  314. 11:42invention of modern chemistry. The
  315. 11:44science behind honey's bizarre
  316. 11:46immortality comes down to four [music]
  317. 11:48properties working together and each one
  318. 11:50on its own would be impressive.
  319. 11:52Combined, they make honey nearly
  320. 11:54indestructible. First, moisture content.
  321. 11:57Honey contains less than [music] 18%
  322. 12:00water. That number is critical because
  323. 12:03bacteria and microorganisms need water
  324. 12:06to survive and reproduce. They
  325. 12:08physically cannot grow in an environment
  326. 12:10that [music] dry. When bees make honey,
  327. 12:12they start with flower nectar, which is
  328. 12:15roughly 80% water. They pass the nectar
  329. 12:18from bee to bee inside the hive, each
  330. 12:21one adding digestive [music] enzymes and
  331. 12:23fanning their wings to evaporate
  332. 12:25moisture. By the time the process
  333. 12:27finishes and the bees seal the cell with
  334. 12:29a wax cap, the water content has dropped
  335. 12:32below the threshold where virtually any
  336. 12:34microorganism can survive. Trying to
  337. 12:36grow bacteria in honey
  338. 12:38>> [music]
  339. 12:38>> is like trying to grow a garden in the
  340. 12:40Sahara. Second, acidity. Honey's pH sits
  341. 12:44between roughly 3 and 4.5, which [music]
  342. 12:47puts it in the same range as vinegar or
  343. 12:49grapefruit juice. That level of acidity
  344. 12:52creates a hostile environment for the
  345. 12:54vast majority of bacteria and pathogens,
  346. 12:57which prefer neutral conditions close to
  347. 12:59a pH of 7. Between the extreme dryness
  348. 13:02and the acid, [music]
  349. 13:04honey is already one of the least
  350. 13:05welcoming environments in the natural
  351. 13:07world. But the bees added a third line
  352. 13:10of defense. During the honey making
  353. 13:12process, bees introduce an enzyme called
  354. 13:15[music] glucose oxidase from their
  355. 13:17salivary glands. This enzyme serves a
  356. 13:20very specific purpose. When it breaks
  357. 13:23down [music] the glucose in honey, it
  358. 13:24produces two chemical byproducts. The
  359. 13:27first is gluconic acid, which further
  360. 13:30lowers the pH and makes the honey even
  361. 13:32more acidic. The second is hydrogen
  362. 13:35peroxide.
  363. 13:36>> [music]
  364. 13:36>> Yes, the same hydrogen peroxide you
  365. 13:39might pour on a scraped knee to prevent
  366. 13:41infection. Honey is quietly and
  367. 13:43continuously producing its own
  368. 13:46antiseptic. Not in large enough
  369. 13:48quantities [music] to harm a person
  370. 13:50eating it, but in exactly the right
  371. 13:52concentration to kill bacteria on
  372. 13:54contact. This is the reason those
  373. 13:56ancient Egyptian wound treatments
  374. 13:58actually [music] worked. The honey was
  375. 14:00slowly and steadily sterilizing the
  376. 14:02wound from the inside. And then there is
  377. 14:04the fourth property, which ties the
  378. 14:06whole system together. Honey is
  379. 14:08hygroscopic. That means it actively
  380. 14:11absorbs and pulls [music] moisture from
  381. 14:13its surroundings. If a bacterium somehow
  382. 14:15lands on the surface of honey, the honey
  383. 14:18draws water [music] directly out of the
  384. 14:19bacterial cell through a process called
  385. 14:22osmotic pressure. The bacterium
  386. 14:25essentially dehydrates and dies [music]
  387. 14:27on contact. It is a passive, automatic
  388. 14:30defense system that requires no
  389. 14:32maintenance, no refrigeration, no
  390. 14:34preservatives, and no human
  391. 14:36intervention. Put all four together, low
  392. 14:39water content, high acidity, continuous
  393. 14:43hydrogen peroxide production,
  394. 14:45and osmotic [music] dehydration of any
  395. 14:48invading microorganism, and you have a
  396. 14:50substance that is hostile to virtually
  397. 14:52every form of microbial life on Earth.
  398. 14:55As long as the container stays sealed
  399. 14:57and no outside moisture gets in, honey
  400. 15:00will [music] remain unchanged for
  401. 15:02centuries, for millennia, for longer
  402. 15:04than any civilization in recorded
  403. 15:06history has lasted. Modern medicine has
  404. 15:09circled back to what the Egyptians
  405. 15:10[music] and Greeks knew intuitively. In
  406. 15:13hospitals across the world, medical
  407. 15:15grade honey is now used to treat chronic
  408. 15:17wounds, burns, and surgical incisions. A
  409. 15:21specific variety called manuka honey
  410. 15:23produced by bees in New Zealand that
  411. 15:25feed on the Manuka bush has become
  412. 15:28particularly valued [music] because it
  413. 15:30contains an additional antibacterial
  414. 15:32compound called methylglyoxal
  415. 15:35that works even when the hydrogen
  416. 15:37peroxide is neutralized. [music]
  417. 15:39Researchers have found that Manuka honey
  418. 15:41can kill antibiotic-resistant bacteria
  419. 15:44like MRSA, the superbug that terrorizes
  420. 15:47[music] modern hospitals. Think about
  421. 15:49that. A substance produced by insects
  422. 15:52using a process that has not changed in
  423. 15:54millions of years is now being deployed
  424. 15:56[music] against bacteria that have
  425. 15:58evolved to resist our most advanced
  426. 16:00pharmaceuticals. We spent decades
  427. 16:02building synthetic antibiotics. Some of
  428. 16:05the toughest infections we face respond
  429. 16:08to something bees figured out long
  430. 16:10before we existed, but despite all of
  431. 16:12its chemical armor, honey does have one
  432. 16:15vulnerability.
  433. 16:16Human carelessness. Add water, leave the
  434. 16:19lid off in a humid kitchen, or
  435. 16:22repeatedly dip a wet spoon into the jar,
  436. 16:25and you introduce [music] enough
  437. 16:26moisture for wild yeast to take hold.
  438. 16:29That yeast ferments the sugars, and the
  439. 16:31honey [music] transforms into something
  440. 16:33else entirely, which is actually how
  441. 16:35humans stumbled [music] into one of the
  442. 16:37oldest alcoholic beverages in history.
  443. 16:40Mead, [music] which is essentially
  444. 16:41fermented honey mixed with water, may
  445. 16:44predate both beer and wine. [music]
  446. 16:46Evidence of mead production has been
  447. 16:48found in pottery fragments from northern
  448. 16:50China dating back roughly 9,000 years,
  449. 16:54making it a candidate for the oldest
  450. 16:56intentionally produced [music] alcoholic
  451. 16:58drink in human history. The ancient
  452. 17:00Greeks drank it at festivals and
  453. 17:02rituals. Ethiopian culture developed a
  454. 17:04honey wine called tej that remains
  455. 17:07popular to this day. The Norse Vikings
  456. 17:09built an entire mythology around mead,
  457. 17:12believing that a magical brew called the
  458. 17:14mead of of
  459. 17:15which had been crafted by dwarves
  460. 17:17[music] from the blood of a murdered
  461. 17:18wise god named Kvasir, could grant
  462. 17:21wisdom, [music] eloquence, and creative
  463. 17:23inspiration to anyone who drank even a
  464. 17:26single sip. Viking warriors believed
  465. 17:28that the halls [music] of Valhalla
  466. 17:30flowed with endless mead served to them
  467. 17:32by Valkyries for all eternity. Across
  468. 17:35medieval England, Scandinavia, Poland,
  469. 17:38[music] and much of Eastern Europe, mead
  470. 17:41was the dominant alcoholic beverage for
  471. 17:43centuries, long before widespread
  472. 17:45[music]
  473. 17:45grape cultivation made wine accessible
  474. 17:48to anyone living north of the Alps. The
  475. 17:50English word honeymoon likely traces
  476. 17:53back to the medieval tradition of
  477. 17:54newlywed [music] couples drinking mead
  478. 17:56for an entire lunar cycle after their
  479. 17:58wedding,
  480. 17:59>> [music]
  481. 17:59>> a practice believed to promote fertility
  482. 18:02and good fortune. And it was medieval
  483. 18:04Christian monks who kept the art of
  484. 18:06beekeeping alive through the long
  485. 18:08centuries when much of the classical
  486. 18:10world's accumulated knowledge was being
  487. 18:13lost. Monasteries across Western Europe
  488. 18:16maintained extensive apiaries, though
  489. 18:18not primarily for honey.
  490. 18:21Their real motivation was beeswax.
  491. 18:23[music]
  492. 18:24The Catholic Church required pure
  493. 18:26beeswax candles for all religious
  494. 18:28services, [music]
  495. 18:29believing that beeswax produced by
  496. 18:31virgin worker bees was the only material
  497. 18:33holy enough to illuminate the altar.
  498. 18:36This doctrinal requirement created
  499. 18:38[music] enormous demand, and monasteries
  500. 18:40became the beekeeping centers of the
  501. 18:42Western world for nearly [music] a
  502. 18:43thousand years. The honey was treated
  503. 18:46almost as a secondary benefit. Monks
  504. 18:48used it for cooking, for brewing mead to
  505. 18:51sell at market, and for [music]
  506. 18:52preparing medicines, continuing healing
  507. 18:54traditions that stretched back unbroken
  508. 18:57to [music] the ancient Egyptians. For
  509. 18:58centuries, the basic practice of
  510. 19:00beekeeping changed [music] very little.
  511. 19:03Beekeepers used woven straw hives called
  512. 19:06skeps, and harvesting honey usually
  513. 19:08meant killing the colony
  514. 19:10>> [music]
  515. 19:10>> or destroying most of the honeycomb. It
  516. 19:12was wasteful and clumsy, but nobody had
  517. 19:15developed a better method. Then, in
  518. 19:171851, a minister [music] and amateur
  519. 19:20naturalist from Philadelphia named
  520. 19:22Lorenzo Lorraine Langstroth made a
  521. 19:24discovery that transformed everything.
  522. 19:27While studying his own hives, Langstroth
  523. 19:30noticed something that other beekeepers
  524. 19:32had overlooked for thousands of years.
  525. 19:35Bees leave a very specific gap between
  526. 19:37their combs, roughly 3/8 of an inch. If
  527. 19:40the space is narrower than that, the
  528. 19:42bees seal it shut with propolis, a
  529. 19:44sticky plant resin they collect. If the
  530. 19:47space is wider, they build extra comb to
  531. 19:50fill it in. But at exactly 3/8 of an
  532. 19:52inch, they leave the gap open and use it
  533. 19:55as a passageway. Langstroth called this
  534. 19:58principle [music] bee space, and he
  535. 20:00realized he could exploit it. He
  536. 20:02designed a wooden hive with removable
  537. 20:04frames, each spaced precisely 3/8 of an
  538. 20:07inch apart. [music]
  539. 20:08Beekeepers could now pull out individual
  540. 20:10frames, inspect the colony for disease,
  541. 20:13harvest honey from specific combs, and
  542. 20:16slide the frames back into place [music]
  543. 20:18without destroying anything. The bees
  544. 20:21would simply continue building on the
  545. 20:22existing foundation. [music]
  546. 20:24This single invention, the Langstroth
  547. 20:26movable frame hive, became the
  548. 20:29foundation of modern beekeeping
  549. 20:30worldwide.
  550. 20:32>> [music]
  551. 20:32>> Langstroth patented the design in 1852
  552. 20:35and published a book called The Hive and
  553. 20:37The Honey Bee that became the definitive
  554. 20:39[music]
  555. 20:40reference for beekeepers across the
  556. 20:41English-speaking world. Virtually every
  557. 20:44commercial beehive in operation today is
  558. 20:46still based on his original concept. His
  559. 20:49invention transformed beekeeping from a
  560. 20:51destructive [music]
  561. 20:52seasonal harvest into a sustainable,
  562. 20:54repeatable, scalable agricultural
  563. 20:57practice, and it made the mass
  564. 20:59production of honey possible for the
  565. 21:00very first time in human history. By the
  566. 21:03middle of the 20th century, commercial
  567. 21:05beekeeping had grown into a major global
  568. 21:08industry. The United States alone
  569. 21:10maintained millions of managed colonies.
  570. 21:13>> [music]
  571. 21:13>> Beekeepers loaded their hives onto
  572. 21:15flatbed trucks and drove them thousands
  573. 21:17of miles across the country, renting
  574. 21:19their bees out to farmers who
  575. 21:21desperately needed pollination [music]
  576. 21:22for almond orchards in California,
  577. 21:25blueberry fields in Maine, apple groves
  578. 21:27in Washington state, and dozens of other
  579. 21:29crops. The honey itself was almost
  580. 21:32secondary to this arrangement. The real
  581. 21:34money was in pollination services
  582. 21:36because without honey bees and the wild
  583. 21:39bees that assist them, roughly one out
  584. 21:41of every three bites of food we eat
  585. 21:43would simply cease to exist. And then,
  586. 21:46in the autumn of 2006,
  587. 21:49beekeepers across the eastern United
  588. 21:51States started reporting something
  589. 21:53terrifying. [music] They were opening
  590. 21:55their hives for routine inspections and
  591. 21:57finding them empty. Not dead, empty. The
  592. 22:01adult worker bees had vanished. The
  593. 22:03queen was still there, surrounded by a
  594. 22:05small cluster [music] of young bees and
  595. 22:07plenty of stored honey, but the adult
  596. 22:09foragers were gone. They had left the
  597. 22:12hive and never returned. Nobody could
  598. 22:14find the bodies. Nobody could explain
  599. 22:17where they went. [music] Within a single
  600. 22:19season, beekeepers lost roughly 30% of
  601. 22:22their managed [music] colonies. Some
  602. 22:24operations lost over 90%. Scientists
  603. 22:27named [music] it colony collapse
  604. 22:28disorder, and the search for a cause
  605. 22:31consumed years of research and millions
  606. 22:33of dollars in funding. What they
  607. 22:35eventually found was not a single
  608. 22:37smoking gun. It was a web of
  609. 22:39interconnected stresses, each one
  610. 22:42capable of weakening [music] a colony,
  611. 22:44and all of them hitting at once. A
  612. 22:46parasitic mite called Varroa destructor,
  613. 22:49originally from Asia, had spread to
  614. 22:51colonies across the globe. The mite
  615. 22:53feeds on the fat bodies of developing
  616. 22:55bee larvae and transmits viruses that
  617. 22:58the immune system of the entire
  618. 23:00hive. At the same time, a class of
  619. 23:03agricultural pesticides called
  620. 23:05neonicotinoids, [music]
  621. 23:07which had become the most widely used
  622. 23:09insecticides in the world, was found to
  623. 23:11impair bees' navigation and memory at
  624. 23:14doses too low to kill them outright. The
  625. 23:17bees could forage, but they could not
  626. 23:19find their way home. Meanwhile,
  627. 23:22monoculture farming was destroying
  628. 23:23[music]
  629. 23:24the wildflower diversity that bees
  630. 23:26depend on for balanced nutrition.
  631. 23:29Chronic transportation stress from being
  632. 23:31trucked across the country weakened
  633. 23:32immune systems further. Climate change
  634. 23:35disrupted the timing between flower
  635. 23:37blooms and bee emergence from winter
  636. 23:39dormancy.
  637. 23:41Colony collapse disorder was not one
  638. 23:43problem. It was everything colliding at
  639. 23:46once. [music] Decades of industrial
  640. 23:48agricultural practices slowly eroding
  641. 23:50bee health until the system finally
  642. 23:52buckled. The crisis has not fully
  643. 23:54resolved. Managed honeybee colony
  644. 23:57numbers in the United States have
  645. 23:59somewhat stabilized, but only because
  646. 24:01commercial beekeepers have adopted a
  647. 24:03brutal replacement strategy. They
  648. 24:05aggressively split their surviving hives
  649. 24:08each spring, dividing strong colonies
  650. 24:10into two or three smaller ones, and
  651. 24:12introducing new queens to rebuild
  652. 24:14population numbers before the next
  653. 24:16pollination season. It works on paper.
  654. 24:19Colony counts stay roughly stable from
  655. 24:22year to year.
  656. 24:23But the underlying health of the bee
  657. 24:25population
  658. 24:25>> [music]
  659. 24:25>> has not recovered. Beekeepers are
  660. 24:28running faster just to stay in the same
  661. 24:30place. Winter losses that would have
  662. 24:32been considered catastrophic 20 years
  663. 24:34ago are now treated as normal operating
  664. 24:37costs. Wild bee populations face a
  665. 24:40grimmer picture. Solitary bees,
  666. 24:43bumblebees, and the hundreds of native
  667. 24:45pollinator species that do not have
  668. 24:47human beekeepers artificially propping
  669. 24:49them up continue to decline [music]
  670. 24:51across North America, Europe, and parts
  671. 24:53of Asia. A A published by researchers in
  672. 24:56the United Kingdom found that 1/3
  673. 24:59[music] of wild bee and hoverfly species
  674. 25:01were in decline. Several bumblebee
  675. 25:03species [music] that were once common
  676. 25:05across the American Midwest have
  677. 25:07effectively vanished from large parts of
  678. 25:09their former range. The ecological
  679. 25:12stakes are enormous. Bees and other
  680. 25:14pollinators are responsible for the
  681. 25:16reproduction of roughly 70% of the crop
  682. 25:19species that feed 90% of the global
  683. 25:22human population. If pollinator
  684. 25:24populations collapse permanently, the
  685. 25:26consequences cascade through the entire
  686. 25:29food system, far beyond losing jars
  687. 25:31[music] of honey on grocery shelves. We
  688. 25:34are talking about almonds, apples,
  689. 25:36avocados, [music] blueberries, cherries,
  690. 25:39cucumbers, and dozens of other crops
  691. 25:41that depend on insect pollination to
  692. 25:43produce fruit. And those grocery shelves
  693. 25:46have their own separate crisis.
  694. 25:48Global demand for honey now far exceeds
  695. 25:51what bees can naturally produce. And the
  696. 25:54gap has been filled by widespread fraud.
  697. 25:56Independent laboratory testing has
  698. 25:58repeatedly found that a significant
  699. 26:01share of honey sold in international
  700. 26:03markets is adulterated [music]
  701. 26:04with cheap corn syrup, rice syrup, or
  702. 26:07beet sugar. Some products sold under
  703. 26:10honey labels contain no actual honey at
  704. 26:12all. In 2013,
  705. 26:14the United States Department of Justice
  706. 26:17brought criminal charges against two
  707. 26:19major importers for smuggling over $80
  708. 26:22million worth of Chinese honey into
  709. 26:25[music] the country through shell
  710. 26:26companies in other nations to evade
  711. 26:29tariffs. The honey had been
  712. 26:31ultra-filtered to strip out all pollen
  713. 26:33grains, making its geographic origin
  714. 26:36completely [music]
  715. 26:36untraceable. Some shipments were
  716. 26:38contaminated with chloramphenicol,
  717. 26:40[music] an antibiotic banned from food
  718. 26:42products in the United States. The
  719. 26:45investigation became known as Honeygate,
  720. 26:47and it exposed just how lucrative the
  721. 26:50global fake honey trade had become.
  722. 26:53There is a grim irony in all of this. A
  723. 26:56substance that has survived perfectly
  724. 26:57[music] intact for 3,000 years inside a
  725. 27:00sealed Egyptian tomb can be cheaply
  726. 27:02counterfeited with a jug of corn syrup
  727. 27:04[music]
  728. 27:04and a misleading label. But despite
  729. 27:07every threat, honey endures. It endures
  730. 27:11because it has always endured. Long
  731. 27:13before any human understood glucose
  732. 27:15[music] oxidase or osmotic pressure or
  733. 27:18hydrogen peroxide, people recognized
  734. 27:20that this golden [music] liquid was
  735. 27:22fundamentally different from every other
  736. 27:24food in nature. They watched bread grow
  737. 27:27mold and meat
  738. 27:28>> [music]
  739. 27:28>> turn rancid and milk go sour. And then
  740. 27:32they looked at a jar of honey sitting
  741. 27:34untouched [music] on a shelf, unchanged
  742. 27:36after months and years. And they treated
  743. 27:38it as something set apart from the
  744. 27:40ordinary [music] world. They did not
  745. 27:42have the vocabulary of chemistry. They
  746. 27:44did not know about [music] pH levels or
  747. 27:46water activity or enzymatic reactions.
  748. 27:50They just knew that honey lasted. And
  749. 27:52because it lasted, [music] they gave it
  750. 27:53to their gods.
  751. 27:55The Egyptians sealed it in tombs beside
  752. 27:57[music] their kings.
  753. 27:59The Greeks anointed their newborns with
  754. 28:00it and fed it to the dead. The Romans
  755. 28:03[music] built estates around the insects
  756. 28:05that produced it. Medieval monks shaped
  757. 28:07an entire economy [music] from the wax
  758. 28:09those insects left behind. And when a
  759. 28:11curious minister in Philadelphia
  760. 28:13measured the gap between honeycombs
  761. 28:15[music]
  762. 28:15and found it was exactly 3/8 of an inch,
  763. 28:19he accidentally unlocked an industry
  764. 28:21[music] that now helps feed the planet.
  765. 28:23Think about that for a second. A jar of
  766. 28:25honey sitting on your kitchen counter
  767. 28:27connects you backward through time to
  768. 28:29Howard Carter brushing dust off an
  769. 28:31alabaster jar in a pharaoh's tomb in
  770. 28:341922.
  771. 28:36Further back to a prehistoric human
  772. 28:38clinging to a cliff face in Spain 8,000
  773. 28:41years ago, bees swarming around their
  774. 28:43head, a basket clutched in one hand.
  775. 28:46Further still to a Greek athlete eating
  776. 28:48honeycomb before a foot race at the
  777. 28:50ancient Olympics. The same substance,
  778. 28:53the same chemistry, the same small
  779. 28:55insect doing the same quiet
  780. 28:57extraordinary work it has been doing for
  781. 29:00millions of years before any human
  782. 29:02civilization ever existed.
  783. 29:05Honey does not just survive across the
  784. 29:07centuries. It connects us to them.
  785. 29:10Backward through time, across languages,
  786. 29:13religions, revolutions to something
  787. 29:16older than farming, older than writing,
  788. 29:18older than virtually everything we have
  789. 29:20built. And the bees that make it
  790. 29:22possible are still out there right now,
  791. 29:24visiting flowers, fanning their wings
  792. 29:26inside dark hives, turning nectar into
  793. 29:29something that refuses to die.
  794. 29:31>> [music]
  795. 29:31>> Whether we protect them well enough to
  796. 29:32keep that chain unbroken is a question
  797. 29:35we have not yet answered.
  798. 29:37>> [music]
  799. 29:37>> If this video taught you something you
  800. 29:39did not know about honey, subscribe to
  801. 29:41the channel and drop a comment telling
  802. 29:43us what surprised you most. [music]
  803. 29:44And if you want more deep dives like
  804. 29:46this one, smash that like button so we
  805. 29:48know to keep making them.

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