Askia Muhammad I (1443–1538), born Muhammad ibn Abi Bakr al-Turi or Muhammad Ture, was the first ruler of the Askia dynasty of the Songhai Empire, reigning from 1493 to 1528. He is also known as Askia the Great, and his name in modern Songhai is Mamar Kassey. Askia Muhammad strengthened his empire and made it the largest empire in West Africa's history. At its peak under his reign, the Songhai Empire encompassed the Hausa states as far as Kano and much of the territory that had belonged to the Songhai empire in the east. His policies resulted in a rapid expansion of trade with Europe and Asia, the creation of many schools, and the establishment of Islam as an integral part of the empire.

The Songhai Empire was a state located in the western part of the Sahel during the 15th and 16th centuries. At its peak, it was one of the largest African empires in history. The state is known by its historiographical name, derived from its largest ethnic group and ruling elite, the Songhai people. Sonni Ali established Gao as the empire's capital, although a Songhai state had existed in and around Gao since the 11th century. Other important cities in the kingdom were Timbuktu and Djenné, where urban-centred trade flourished; they were conquered in 1468 and 1475, respectively. Initially, the Songhai Empire was ruled by the Sonni dynasty, but it was later replaced by the Askia dynasty (1493–1591).