13th century
Videos
The 13th century was the century which lasted from January 1, 1201 through December 31, 1300 in accordance with the Julian calendar.
Eastern Hemisphere in 1200 AD
Mongol Emperor Genghis Khan whose conquests created the largest contiguous empire in history
A page of the Italian Fibonacci's Liber Abaci from the Biblioteca Nazionale di Firenze showing the Fibonacci sequence with the position in the sequence labeled in Roman numerals and the value in Arabic-Hindu numerals.
Portrait of the Chinese Zen Buddhist Wuzhun Shifan, painted in 1238, Song dynasty.
Fourth Crusade
Videos
The Fourth Crusade was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first defeating
A 15th-century miniature depicting the conquest of Constantinople by the Crusaders in 1204
Venetian Navy landing in Constantinople, from a XV Century miniature
The crusaders conquering the City of Zadar, painted by Tintoretto
Dandolo Preaching the Crusade by Gustave Doré