Workers' Rights Movement Riot in Chicago in 1886

This page is the CodyCross answer for the clue below from House of Horrors, Group 1106, Puzzle 2 (Mystery and Suspense).

Question is: Workers' Rights Movement Riot in Chicago in 1886

and the answer is: HAYMARKET

Word Meaning:

HAYMARKET — (historical) A market that sells hay as animal fodder.

Definitions from Wiktionary.