Cheondoism, spelled Chondoism in North Korean sources (Korean: Cheondogyo; hanja 天道教; hangul 천도교; literally "Religion of the Heavenly Way"), is a 20th-century Korean religious movement, based on the 19th century Donghak neo-Confucian movement founded by Choe Je-u and codified under Son Byeong-hui. Cheondoism has its origins in the peasant rebellions which arose starting in 1812 during the Joseon dynasty.