Thirty percent of Ghana's nineteen million people are Muslim, 24 percent are Christian, and 38 percent practice indigenous religions. The Muslim presence is the result of extensive migration, rather than mass conversion or conquest. The Ghana Ahmadiyya Movement has been active since 1885 and has operated a number of Western-style schools designed to spread their influence: one missionary training college, seven secondary schools, and about one hundred elementary schools. The Qadiri and Tijani Sufi orders also have followings among Ghana's Muslims. The constitution prohibits religion-based political parties; the only Muslim political party in the nation's history was the Muslim Association Party, disbanded after independence from the United Kingdom in 1957.