In 1810, further instigations led to the establishment of the Independent Order of Oddfellows Manchester Unity in England. Odd Fellows spread overseas, including formally chartering the fraternity in the United States in 1819. In 1842, due to British authorities intervening in the customs and ceremonies of British Odd Fellows and in light of post-colonial American sovereignty, the American Odd Fellows became independent as the Independent Order of Odd Fellows under British-American Thomas Wildey (1782–1861), soon constituting the largest sovereign grand lodge. Likewise, by the mid-19th century, the Independent Order of Oddfellows Manchester Unity had become the largest and richest fraternal organisation in the United Kingdom.