Skip to main content

Ottoman Empire vs Byzantine Empire

At its height the Ottoman Empire (about 5.2 million km² in 1683) was about twice the size of the Byzantine Empire (about 2.7 million km² in 555 CE). The Byzantine Empire lasted about 1123 years (330 CE to 1453), the Ottoman Empire about 623 (1299 to 1922). They existed side by side from 1299 to 1453.

Ottoman EmpireByzantine Empire
Began1299330 CE
Ended19221453
Lastedabout 623 yearsabout 1123 years
Largest extentabout 5.2 million km² (1683)about 2.7 million km² (555 CE)
Share of the world’s land3.5%1.8%
CapitalConstantinople (Istanbul)Constantinople

Ottoman Empire

Founded by Osman I around 1299, it took Constantinople in 1453 and for centuries ruled southeastern Europe, the Middle East and North Africa, until the sultanate was abolished in 1922.

Began 1299: Osman I founds the state in northwestern Anatolia. Ended 1922: the sultanate is abolished.

On the history map: World map in 1300 CE, World map in 1715 CE, World map in 1920 CE

Ottoman Empire on Wikipedia

Byzantine Empire

The eastern Roman Empire, ruled from Constantinople. Justinian won back Italy, North Africa and southern Spain in the 6th century; the empire then shrank slowly until the Ottomans took Constantinople in 1453.

Began 330 CE: Constantinople is founded as the new capital. Ended 1453: the Ottomans take Constantinople.

On the history map: World map in 400 CE, World map in 1000 CE, World map in 1400 CE

Byzantine Empire on Wikipedia

More comparisons

Compare empires · The interactive history atlas

Largest extents are the widely cited estimates by Rein Taagepera and others, as listed in Wikipedia’s List of largest empires. Dates are the conventional ones; several are debated. Shares are of the world’s land area, about 148.9 million km².