<Tr> <Td> Third quarter: </Td> <Td> 4 5 1 </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Full hour: </Td> <Td> 2 3 4 5 + Big Ben (3 o'clock example) </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr>

When did big ben chime for the first time