Panchronia

Fibonacci

◍ Open on the globe

mathematician

c. 1170 – 1250 · 80 years · Pisa · Europe

Leonardo of Pisa, who introduced Hindu–Arabic numerals to Europe in his Liber Abaci; famous for the sequence named after him.

Portrait: Public domain · Wikimedia Commons

Contemporaries around the world

Europe

Eastern Europe & Russia

Middle East

Africa

Asia

The world in their lifetime