A 12-Year-Old Slave on Réunion Worked Out How to Pollinate Vanilla in 1841

The vanilla orchid is mechanically annoying. Vanilla planifolia is native to Mexico, where it co-evolved with the Melipona bee — a small native pollinator that is one of the very few insects whose anatomy lines up with the orchid's hooded flower. Outside Mexico, the orchid will grow but won't fruit. For three centuries after Cortés's men brought vanilla beans back to Europe, every bean in the world came from Mexico, and growers as far away as the Indian Ocean tried and failed to produce a pod.

In 1841, on the French sugar colony of Réunion in the Indian Ocean, a twelve-year-old enslaved boy named Edmond Albius worked out the trick. His owner, the horticulturalist Féréol Bellier-Beaumont, had been trying to get his vanilla vines to fruit for years. Albius, watching the same flowers, saw that the orchid had an internal flap of tissue, the rostellum, separating the male and female parts and that pollination required someone to lift the flap and press them together. He slid a thin sliver of bamboo under the flap, used his thumb to press the anther onto the stigma, and waited. The flower fruited.

Albius's technique scaled trivially. Within a few years Réunion had become the world's largest vanilla producer, and the method spread to Madagascar — which, now, supplies more than 80 percent of the global vanilla crop. Bellier-Beaumont publicly credited Albius for the invention; other Réunion growers tried, briefly, to claim it. Slavery was abolished across French colonies in 1848. Albius left the plantation and adopted the surname Albius, Latin for white, after the vanilla flower. He died in poverty in 1880, age about 50, after a brief prison term for a jewelry theft. The contemporary global vanilla industry is worth roughly $700 million a year and rests entirely on his gesture.