USAID's history goes back to the Marshall Plan reconstruction of Europe after World War Two and the Truman Administration's Point Four Program. In 1961, the Foreign Assistance Act was signed into law and USAID was created by executive order.
Since that time, USAID has been the principal U.S. agency to extend assistance to countries recovering from disaster, trying to escape poverty, and engaging in democratic reforms.
USAID is an independent federal government agency that receives overall foreign policy guidance from the Secretary of State.