September 3rd, 1967, Stockholm, Sweden. The day Sweden changed from driving on the left to driving on the right.
A welder at a boat-and-sub-building yard adjusts her goggles before resuming work, October, 1943. By 1945, women comprised well over a third of the civilian labor force (in 1940, it was closer to a quarter) and millions of those jobs were filled in factories: building bombers, manufacturing munitions, welding, drilling and riveting for the war effort.
See more photos here.
The first ever photographs of lightning shot by amateur photographer William N. Jennings between 1885 and 1890
— Consolidated Aircraft, Fort Worth, Tx - Oct 1942 —