Joseph Déjacque, born on this day in 1821, was a French anarcho-communist poet and philosopher who coined the term "libertarian" in reference to his own anti-capitalist politics. "People of progress, martyred by authority, choose anarchy!"
Image: A photo of "La Question Revolutionnaire" by Joseph Déjacque
On this day in 1973, overworked astronauts on the American Skylab 4 mission accidentally went radio silent. The situation was perceived as a strike by ground control and resulted in better labor conditions for the space crew.
Image: The final view of Skylab, from the departing mission 4 crew, with Earth in the background
The Toranomon Incident (虎ノ門事件) was an assassination attempt on the Prince Regent Hirohito of Japan by communist dissident Daisuke Nanba that took place in downtown Tokyo, Japan on this day in 1923.
Image: Daisuke Namba, the attempted assassin of Crown Prince Regent Hirohito, displaying facial injuries sustained under police custody