<Tr> <Td> 23 </Td> <Td> Maine </Td> <Td> 000000001820 - 03 - 15 - 0000 March 15, 1820 (Admitted) </Td> <Td> Massachusetts (District of Maine) </Td> </Tr> <Tr> <Td> 24 </Td> <Td> Missouri </Td> <Td> 000000001821 - 08 - 10 - 0000 August 10, 1821 (Admitted) </Td> <Td> Missouri Territory (part) </Td> </Tr> <Tr> <Td> 25 </Td> <Td> Arkansas </Td> <Td> 000000001836 - 06 - 15 - 0000 June 15, 1836 (Admitted) </Td> <Td> Arkansas Territory </Td> </Tr> <Tr> <Td> 26 </Td> <Td> Michigan </Td> <Td> 000000001837 - 01 - 26 - 0000 January 26, 1837 (Admitted) </Td> <Td> Michigan Territory </Td> </Tr>

When did the 50 states join the union