What year was Halo first released?
2001
1996
1996
1997
1996
1997
1996
1993
1997
1996
1993
2001
1995
1997
1996
1993
2001
1992
1995
1991
1997
1996
1993
2001
1992
1995
1991
1997
1996
1993
2001
1992
1995
1991
1997
1996
2003
1993
2001
1992
1995
1991
1997
1996
2004
2003
1993
2001
1992
1995
1999
1991
1997
1996
2004
2003
1993
2001
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2003
1993
2002
2001
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2003
1993
2002
2001
2005
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2003
1993
2002
2001
2000
2005
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2003
1993
2002
2001
2000
2005
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2006
2003
1993
2002
2001
2000
2005
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2006
2003
1993
2002
2001
2000
2005
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2006
2003
1993
2002
2001
2000
2005
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2006
2003
1993
2002
2001
2000
2005
1994
1992
1995
1999
1991
1998
1990
1997
1996
2004
2006
2003
1993
2002