About 85,000,000 Nigerians are Muslims. That is about half of the people of Nigeria. Most of the other people are Christian.[1][2][3] Muslims in Nigeria are mostly Sunni in the Maliki school, which is also the Sharia law in the government. However, there is a important Shia minority, mostly in Sokoto State (see Shia in Nigeria). A smaller number of people follow the Ahmadiyya Islam, a reformatory sect that started in India in the 19th century. Pew Forum on religious diversity says that 12% are Shia Muslims while 3% are Ahmadi Muslims.[4]