Christianity began to spread from the middle of the 15th century, after the arrival of Portuguese Catholic missionaries. Germans introduced Protestantism in the second half of the 19th century when a hundred missionaries of the Bremen Missionary Society were sent to the coastal areas of Togo and Ghana. Togo's Protestants were known as "Brema," a corruption of the word "Bremen." After World War I, German missionaries had to leave, which gave birth to the early autonomy of the Ewe Evangelical Church.