artwork
May 1st was chosen to commemorate the 1886 Haymarket affair in Chicago
Chicago, Illinois
May 1, 1886
artwork
 | 
IWD
 | 
mayday
 | 
May 1
 | 
Labor Day
 | 
union rights
 | 
proletariat
 | 
Karl Marx
 | 
Robert Owen
 | 
eight hours of work
 | 
eight hours of recreation
 | 
eight hours of rest
 | 
history
 | 
on this day
 | 
worker's rights
 | 
International Worker's Day
 | 
workforce
 | 
labor
 | 
organizational theory
 | 
Chicago
 | 
Haymarket