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Constantinople falls to the Ottoman Turks, ending the Byzantine Empire

On this day · 29 May 1453
45 sec read

On 29 May 1453, Mehmed II's army breached the great walls of Constantinople, closing the book on a 1,000-year empire.

Verified · British Library

On 29 May 1453, after a siege of roughly two months, the army of Sultan Mehmed II broke into Constantinople, capital of the Byzantine Empire. The Ottomans, numbering tens of thousands, vastly outmatched a defending force of only a few thousand strung along miles of ancient land walls.

The last emperor, Constantine XI Palaiologos, threw off his imperial insignia and died fighting in the breach. By eyewitness accounts his body was later identified among the dead only by the embroidered eagles on his shoes.

One state, traceable to the Roman Empire of antiquity, had endured nearly a thousand years in this city — and ended in a single morning.

Mehmed, just 21, made the captured city his new capital and earned the title “the Conqueror.” The great church of Hagia Sophia was converted into a mosque, and an event long dreaded across Christendom became a hinge between the medieval and early-modern worlds.

1453
the city falls
~2mo
siege
1,000yr
empire ended

Sources & references

2 references

Well-established. Corroborated by 2 independent sources.

1 British Library national library “"...the fall of Constantinople to the Ottoman Empire, on 29 May 1453." Mehmed II "arrived at the gates of the city in April 1453 and started besieging" it; Constantine XI was "identified under a heap of corpses by the imperial eagle embroidered on his shoes."” bl.uk ↗
2 Hagia Sophia & Its Transformations — Fordham University (SAPIENTIA) University research blog “"...in 1453 when the Ottoman Turks under the leadership of Sultan Mehmed II 'the Conqueror'... besieged Constantinople and brought an end to the Byzantine Empire," after which "Hagia Sophia was converted into a mosque."” crc.blog.fordham.edu ↗
✓ Last reviewed Jun 7, 2026

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