Haymarket Square^[1] is a commercial area on the Near West Side^[2] of Chicago at Randolph Street and Des Plaines Street^[3] just east of Halsted Street,^[4] known primarily for the protest and bombing that occurred on May 4, 1886.^[5][6] It was a wide,^[7] busy commercial food produce market^[8][9] for much of the 19th and early 20th centuries. The square is a tourist destination,^[10] and is often a rally point for various unions^[11] and political groups and individuals.^[12]