on-this-day · september 20
the victoria, the only ship from magellan's fleet to complete the circumnavigation. source: wikimedia commons
Three Years to Circle the World
On this day in 1519 — Magellan's expedition departed Spain. It took three years to prove the earth is round by sailing around it.
2 min read
On September 20, 1519, five ships left the Spanish port of Sanlucar de Barrameda sailing west. About 270 men, supplies for two years, navigation plans based on incomplete maps. The goal: a western route to the Spice Islands. Ferdinand Magellan, Portuguese but sailing under the Spanish flag, commanded the fleet. Three years later, one ship returned with 18 survivors. Magellan was not among them.
The voyage was a disaster by almost every measure. Of five ships, only the Victoria returned. Magellan was killed in the Philippines in April 1521. The expedition faced mutiny, starvation, scurvy, and months crossing the Pacific -- far larger than maps suggested -- without sighting land. Sailors ate leather, sawdust, and rats.
The fleet found a narrow strait at South America's southern tip. The passage took 38 days. After Magellan's death, the Victoria continued under Juan Sebastian Elcano, around the Cape of Good Hope, arriving in Spain on September 6, 1522.
ferdinand magellan, whose expedition departed spain on september 20, 1519 — the first voyage to circumnavigate the globe, though magellan himself did not survive to complete it. source: wikimedia commons
The expedition proved the Earth was navigable as a sphere. The crew had also lost a day by sailing west -- an empirical demonstration of time zones before anyone formalized the concept.
Magellan's name is attached, but Elcano completed it. Brutal, poorly planned, it succeeded almost despite itself. But it turned the globe from idea into lived experience. You could sail away and find your way back from the opposite direction. Proof of concept for how the planet works.