The strange history of the now abandoned American 1993-bill, «Don't ask, don't tell» where sexual orientation was a "non-talk" policy in the American forces, leading to 13.368 getting kicked out before 2011.
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1970
1998
1982
1948
2001
2006
2003
1994
1978
1976
2007
1961
1964
2013
1930
1983