The khalifa ruled over the Islamic empire.

The Khalifas gathered for a meeting to discuss important matters.

Khalifa is a successful entrepreneur.

The khalifas gathered for a meeting to discuss important matters.

The khalifate was established after the death of the prophet.

The khalifah ruled over the Islamic empire during the Golden Age of Islam.

The khalifates ruled over vast territories during the Islamic Golden Age.

The khalifat was established in the 7th century.

The khalifats gathered for a meeting.

The khalifahs ruled over the Islamic empire.