<Tr> <Td> Toronto Blue Jays (AL, 1977) * </Td> <Td> </Td> <Td> </Td> <Td> 1993 </Td> <Td> 1993 </Td> </Tr> <Tr> <Td> Houston Astros (NL, 1962; AL, 2013) * (previously Colt . 45's, NL) </Td> <Td> </Td> <Td> </Td> <Td> 2017 </Td> <Td> 2017 </Td> </Tr> <Tr> <Td> Los Angeles Angels (AL, 1961) * (previously California / Anaheim Angels and Los Angeles Angels of Anaheim) </Td> <Td> </Td> <Td> </Td> <Td> 2002 </Td> <Td> 2002 </Td> </Tr> <Tr> <Td> Arizona Diamondbacks (NL, 1998) * </Td> <Td> </Td> <Td> </Td> <Td> 2001 </Td> <Td> 2001 </Td> </Tr>

When did the world series became best of 7