What brutal event occurred during the Colorado Coal Field War in 1913-1914?

The Ludlow Massacre is a significant historical event that took place during the Colorado Coal Field War from 1913 to 1914. This tragic incident occurred on April 20, 1914, when the Colorado National Guard and Colorado Fuel & Iron Company (CF&I) guards attacked a tent colony of 1,200 striking workers and their families in Ludlow, Colorado. The miners were striking for better working conditions, pay, and union recognition amidst a tense labor dispute.

The attack resulted in the deaths of men, women, and children, making it a notable part of labor history and highlighting the extreme violence faced by labor unions during that era. The Ludlow Massacre galvanized public opinion and drew attention to the plight of miners, eventually leading to reforms in labor laws and greater awareness of workers' rights.

The other events mentioned, such as the Coal Strike, Miners' Insurrection, and Summer of Strikes, do reflect aspects of the labor movement during that time but do not encapsulate the specific brutality and tragedy of the Ludlow Massacre, which remains one of the most infamous incidents of labor conflict in U.S. history.