 As of 2017, estimates of the number of Nigeria's 90–95 million Muslims who are Shia vary from between 20 million (Shia estimate), to less than five million (Sunni estimate).In the 1980s, Ibrahim El-Zakzaky—a Nigerian admirer of the Iranian Revolution who lived in Iran for some years and converted to Shia Islam—established the Islamic Movement of Nigeria.The movement has established "more than 300 schools, Islamic centers, a newspaper, guards and a `martyrs’ foundation`".