Battle of Ankara and Tamerlane's Defeat of the Ottomans
What happened
In July 1402, the Turco-Mongol conqueror Timur (Tamerlane) decisively defeated Sultan Bayezid I of the Ottoman Empire at the Battle of Ankara, capturing the sultan and temporarily fragmenting Ottoman power. The victory shocked the Islamic and Christian worlds alike, dramatically altering the balance of power across Anatolia and the Near East. The defeat bought Constantinople — and with it Byzantine civilisation — an additional half-century of survival, reshaping the cultural map of the eastern Mediterranean.
Literary impact
The sudden reversal of Ottoman power inspired poets across Persian, Arabic, and Turkish literary traditions to wrestle with the theme of Fortune's wheel — the rise and fall of great empires — which had been central to classical and medieval verse. The Timurid court that Tamerlane cultivated became one of the most lavish patrons of Persian poetry, and the events of 1402 contributed to the flourishing of poets such as Abd al-Rahman Jami in the generation that followed. In the West, news of Bayezid's humiliation entered European poetic imagination, resurfacing most famously in Christopher Marlowe's Tamburlaine the Great nearly two centuries later.
Source: Wikipedia