<Table> <Tr> <Th_colspan="2"> Indianapolis Colts </Th> </Tr> <Tr> <Td_colspan="2"> Current season </Td> </Tr> <Tr> <Td_colspan="2"> Established January 23, 1953; 65 years ago (January 23, 1953) First season: 1953 Play in Lucas Oil Stadium Indianapolis, Indiana Headquartered in the Indianapolis Colts Football Training Center Indianapolis, Indiana </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Logo </Td> <Td> Wordmark </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> League / conference affiliations </Th> </Tr> <Tr> <Td_colspan="2"> <P> National Football League (1953--present) </P> <Ul> <Li> Western Conference (1953--1969) <Ul> <Li> Coastal Division (1967--1969) </Li> </Ul> </Li> <Li> American Football Conference (1970--present) <Ul> <Li> AFC East (1970--2001) </Li> <Li> AFC South (2002--present) </Li> </Ul> </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Current uniform </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Team colors </Th> <Td> <P> Royal Blue, White </P> </Td> </Tr> <Tr> <Th> Mascot </Th> <Td> Blue </Td> </Tr> <Tr> <Th_colspan="2"> Personnel </Th> </Tr> <Tr> <Th> Owner (s) </Th> <Td> Jim Irsay </Td> </Tr> <Tr> <Th> CEO </Th> <Td> Jim Irsay </Td> </Tr> <Tr> <Th> General manager </Th> <Td> Chris Ballard </Td> </Tr> <Tr> <Th> Head coach </Th> <Td> Frank Reich </Td> </Tr> <Tr> <Th_colspan="2"> Team history </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Baltimore Colts (1953--1983) </Li> <Li> Indianapolis Colts (1984--present) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Championships </Th> </Tr> <Tr> <Td_colspan="2"> <P> League championships (4 †) </P> <Ul> <Li> NFL Championships (pre-1970 AFL--NFL merger) (3) 1958, 1959, 1968 </Li> </Ul> <Ul> <Li> Super Bowl championships (2) 1970 (V), 2006 (XLI) </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> <P> Conference championships (7) </P> <Ul> <Li> NFL Western: 1958, 1959, 1964, 1968 </Li> <Li> AFC: 1970, 2006, 2009 </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> <P> Division championships (16) </P> <Ul> <Li> NFL Coastal: 1968 </Li> <Li> AFC East: 1970, 1975, 1976, 1977, 1987, 1999 </Li> <Li> AFC South: 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2013, 2014 </Li> </Ul> †--Does not include the AFL or NFL Championships won during the same seasons as the AFL--NFL Super Bowl Championships prior to the 1970 AFL--NFL merger </Td> </Tr> <Tr> <Th_colspan="2"> Playoff appearances (27) </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> NFL: 1958, 1959, 1964, 1965, 1968, 1970, 1971, 1975, 1976, 1977, 1987, 1995, 1996, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013, 2014 </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Home fields </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Memorial Stadium (1953--1983) </Li> <Li> RCA Dome (1984--2007) </Li> <Li> Lucas Oil Stadium (2008--present) </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Indianapolis Colts </Th> </Tr>

When did the indianapolis colts become a team