The Haymarket square riot.
Haymarket Riot
The knights of labor helped workers including blacks women and child workers
The Haymarket Square Riot
Knights of Labor
The Knights of Labor
The Knights of Labor.
Knights of Labor was created in 1869.
The Haymarket riot of 1886, Chicago IL.
Haymarket Riot of 1886
The full name for the Knights of Labor is the "Noble and Holy Order of the Knights of Labor". It was shortened to make it easier to say and to remember.
the knights of labor lack ability to carry out successful strikes
Knights of Labor