The Songhai are west Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

 people who speak Songhai languages, the lingua franca of the Songhai Empire

Songhai Empire

The Songhai Empire, also known as the Songhay Empire, was a state located in western Africa. From the early 15th to the late 16th century, Songhai was one of the largest Islamic empires in history. This empire bore the same name as its leading ethnic group, the Songhai. Its capital was the city...

 which dominated the western Sahel

Sahel

The Sahel is the ecoclimatic and biogeographic zone of transition between the Sahara desert in the North and the Sudanian Savannas in the south.It stretches across the North African continent between the Atlantic Ocean and the Red Sea....

 in the 15th and 16th century. The Songhai are found primarily throughout Mali

Mali

Mali , officially the Republic of Mali , is a landlocked country in Western Africa. Mali borders Algeria on the north, Niger on the east, Burkina Faso and the Côte d'Ivoire on the south, Guinea on the south-west, and Senegal and Mauritania on the west. Its size is just over 1,240,000 km² with...

 in the Western sudanic region

Sudan (region)

The Sudan is the name given to a geographic region to the south of the Sahara, stretching from Western to Eastern Africa. The name derives from the Arabic bilâd as-sûdân or "land of the Blacks"...

 (not the country). The name Songhai is historically neither an ethnic nor a linguistic designation, but a name for the ruling caste of the Songhay Empire. Speakers in Mali have adopted it as an ethnic self-designation but other Songhay-speaking groups identify themselves by other ethnic terms such as Zarma (or Djerma, the largest subgroup of the Songhai) or Isawaghen.