What came before and was similar to the Peace Corps?

Before the Peace Corps was established in 1961, similar initiatives included programs like the International Voluntary Service (IVS) founded in the 1920s, and the United Nations Relief and Rehabilitation Administration (UNRRA) post-World War II. These organizations focused on volunteerism and international aid, promoting cross-cultural understanding and development assistance. Additionally, the American Friends Service Committee, associated with the Quakers, engaged in relief work and community service internationally, embodying principles of service and helping communities in need.