1975-2013

presidents

1974 - 1977
1977 - 1981
1981 - 1989
1989 - 1993
1993 - 2001
2001 - 2009
2009 - Present

legislation, amendments,supreme court

1978
1983
May 7, 1992
2000
2003
march 23, 2010

world events

1981
1983
1984
1985
1989
1990
September 11, 2001

technology

1985
1986
1988
july 31, 1989
1995
2003
Nov 1 2007

society and culture

march 28, 1979
1980 - 1990
1980 - Present
1980 - Present
1981 - Present
1990 - Present