<Tr> <Th_colspan="3"> International </Th> </Tr> <Tr> <Td> 1 point (p) </Td> <Td> </Td> <Td> 127 / 360 mm or 6996352778000000000 ♠ 352.778 μm </Td> </Tr> <Tr> <Td> 1 pica (P̸) </Td> <Td> 12 p </Td> <Td> 127 / 30 mm or 6997423300000000000 ♠ 4.233 mm </Td> </Tr> <Tr> <Td> 1 inch (in or") </Td> <Td> 6 P̸ </Td> <Td> 25.4 mm </Td> </Tr>

Who came up with the us measurement system