 Other well known minorities are Romani people, Baltic Germans and Jews, whose population decreased significantly after the Second World War, as well as Lithuanians and Estonians.Until the 12th century, Latvians were naturalists or otherwise known as pagans, Christianity arrived in the 12th and 13th century and was the most influential religion in the region until the arrival of Communism in the 20th century when all religions were banned.Today the majority of Latvians are part of the Lutheran Church with large Catholic and Orthodox Christian minorities.