Ottoman Khilafat lasted for how many years:

The Ottoman Caliphate lasted from 1299 to 1922, approximately 623 years, not 624, ending with the abolition of the caliphate. Studying this highlights its role in Islamic history, the challenges of sustaining empires, and its impact on global politics. It also offers insights into how historical empires shape modern nations, providing lessons on preserving cultural heritage for national identity.