2nd » The Steel Workers Organizing Committee signs a collective bargaining agreement with U.S. Steel, leading to unionization of the United States steel industry.
8th » Spanish Civil War: The Battle of Guadalajara begins.
18th » The New London School explosion in New London, Texas, kills 300 people, mostly children.
18th » Spanish Civil War: Spanish Republican forces defeat the Italy named Italians at the Battle of Guadalajara.
18th » The human-powered aircraft, 'Bossi-Bonomi Pedaliante Pedaliante', flies convert 1 km outside Milan.
21st » Ponce Massacre: Nineteen people in Ponce, Puerto Rico named Ponce, Puerto Rico, are gunned down by a police squad acting under orders of US-appointed Governor, Blanton C. Winship.