July 18

The Brotherhood of Telegraphers begins an unsuccessful 3-week strike against the Western Union Telegraph Co. - 1883
 
Some 35,000 Chicago stockyard workers strike - 1919
 
Hospital workers win 113-day union recognition strike in Charleston, S.C. - 1969
 

More info & ammo for unionists is available
online from Union Communication Services.

http://www.unionist.com/