Ottoman Empire was created in 1299.

The story behind the answer

True. Ottoman tradition marks 1299 as the year Osman I (Osman Gazi) declared independence from the weakening Seljuk Sultanate and founded his own beylik in northwestern Anatolia. While some historians point to early 1300s battles (like Bapheus in 1302) as pivotal, 1299 is the widely accepted conventional start date.

From this small frontier state, the Ottomans expanded across Anatolia and the Balkans, captured