BTW: History that else happens on the 20th July:

The 20 July plot of 1944 was a failed attempt to assassinate Adolf Hitler, the leader of Nazi Germany, inside his Wolfsschanze field headquarters near Rastenburg, East Prussia. The plot was the culmination of the efforts of the German Resistance to overthrow the Nazi regime. The failure of both the assassination and the military coup d’tat which was planned to follow it led to the arrest of at least 7,000 people by the Gestapo. According to records of the Fhrer Conferences on Naval Affairs, 4,980 people were executed, resulting in the destruction of the resistance movement in Germany.

The Numbers are from Wikipedia.