It's a good day to kill folks....

The Ludlow massacre was the death of about 20 people during an attack by the Colorado National Guard on a tent colony of 1,200 striking coal miners and their families, including women and children, at Ludlow, Colorado on April 20, 1914. This attack was the culmination of a day-long fight between strikers and the militia in which 17 strikers or their family members, three Guardsmen and one bystander were killed.

This was the bloodiest event in the 14-month Colorado Coal Strike of 1913-1914. The strike was organized by the United Mine Workers of America (UMWA) against the Rockefeller-owned Colorado Fuel & Iron Company as well as the Rocky Mountain Fuel Company (RMF) and the Victor-American Fuel Company (VAF). Ludlow, located 12 miles northwest of Trinidad, Colorado, is now a ghost town. The massacre site is now owned by the UMWA, which erected a granite monument in memory of the striking miners and their families who died that day.