I take it you mean Operation Valkyrie, which was on July 20th, 1944.
Operation Happy New Year was created in 1996.
The first apendix operation was in 1887
1979.
1941
D-day started in the year 1944
1968.
1996
1965 a.d.
Operation Sealion was the planned Nazi invasion of Britain that never took place. (It was planned for 1940).
1887
In the year 1984
What year did Just Energy begin operation