Africa was the first continent, outside of Arabia that Islam spread into in the early 7th century. Almost one-third of the world's Muslim population resides in the continent. Muslims crossed current Djibouti, Somalia and Eritrea to seek refuge in present-day Ethiopia during the Hijarat. Most Muslims in Africa are Sunni; the complexity of Islam in Africa is revealed in the various schools of thought, traditions, and voices in many African countries. African Islam is not static and is constantly being reshaped by prevalent social, economic, and political conditions. Generally Islam in Africa often adapted to African cultural contexts and belief systems forming Africa's own orthodoxies.