<Tr> <Td> September 14, 1862 </Td> <Td> Burkittsville </Td> <Td> Crampton's Gap </Td> </Tr> <Tr> <Td> September 17, 1862 </Td> <Td> Sharpsburg </Td> <Td> Antietam </Td> </Tr> <Tr> <Td> October 8, 1862 </Td> <Td> Perryville </Td> <Td> Chaplin Hills </Td> </Tr> <Tr> <Td> December 31, 1862--January 2, 1863 </Td> <Td> Murfreesboro </Td> <Td> Stones River </Td> </Tr>

What was the north called in the civil war