<Tr> <Th_colspan="2"> Labor Day </Th> </Tr> <Tr> <Td_colspan="2"> Labor Day Parade in New York's Union Square, 1882 </Td> </Tr> <Tr> <Th> Observed by </Th> <Td> United States </Td> </Tr> <Tr> <Th> Type </Th> <Td> National </Td> </Tr>

Who came up with the idea of labor day