On this day, 21 March 1937, the Ponce massacre occurred when police killed 19 people on a peaceful demonstration and wounded hundreds in Puerto Rico. They were marching for the release of imprisoned separatist leader Albizu Campos. Police acted on the orders of the US-appointed governors, and after the murders staged photos with a press photographer to try to claim self defence. This is a short account of the events: https://libcom.org/history/ponce-massacre-1937 https://www.facebook.com/workingclasshistory/photos/a.296224173896073/1947202385464902/?type=3