1406

Same year, around the world
Featured events in 1406
1406AfricaCulture

Ibn Khaldun Dies in Cairo

The Tunisian historian who invented sociology died as a Maliki judge in Mamluk Egypt, his Muqaddimah mostly unread. He had argued that civilizations rise and fall on asabiyyah, the tribal solidarity that softens in cities. Six centuries later, economists still quote him without knowing they are doing it. His cyclical theory of civilization anticipated modern theories of imperial rise and decline by half a millennium.

1406Late Middle Ages
1406EuropeScience

Ptolemy's Geography Translated into Latin

Jacopo d'Angelo completed a Latin translation of Claudius Ptolemy's second-century Geography in Florence, reintroducing coordinate-based mapping to Western scholars for the first time in a millennium. The text taught European cartographers to think of the earth as a measurable grid of latitude and longitude. Within a century, that same grid would be used to divide continents Europeans had not yet visited between rival colonial powers.

1406Late Middle Ages
1406EuropePolitics

Florence Conquers Pisa

After a brutal starvation siege, the Arno republic swallowed its coastal rival and finally gained a seaport. Florentine galleys could now reach Alexandria without begging Genoese permission. The triumph funded a generation of Medici banking and, indirectly, the paintings that would define the next century. Pisa's population, decimated by siege, was further reduced by Florentine reprisals that scattered its merchants across Italy.

1406Late Middle Ages
1406AfricaExploration

Portugal Secures Atlantic Islands

Portuguese settlers were establishing permanent colonies on the Azores and Madeira, experimenting with sugar cultivation and African slave labor in patterns that would be scaled up for Brazil and the Caribbean. The fifteenth-century Atlantic was becoming, quietly, a Portuguese lake. Madeira's sugar plantations, worked by enslaved laborers, served as the prototype for the economy that would devastate Brazil and the Caribbean.

1406Late Middle Ages

Want 1406 in context? Print the whole 15th century as a one-sheet timeline chart.

Compare years

Frequently asked

What happened in the year 1406?

Saeculum lists 4 curated events from 1406. The most significant is Ibn Khaldun Dies in Cairo: The Tunisian historian who invented sociology died as a Maliki judge in Mamluk Egypt, his Muqaddimah mostly unread.

What era was 1406 part of?

1406 falls within the Late Middle Ages (1301-1500). Plague, papal schism, and the seeds of nation-states.

Which regions saw notable events in 1406?

The curated events from 1406 span Africa and Europe.

Related guides