9h 53min, dec 1, 1869 y - Knights of Labor
Description:
Originally created as a secret society of garment workers, but the Knights later increased their scope to include people of almost all races, genders, and field of employments, along with working on a national level to organize strikes against corporations. The issues they brought upon were many that appeared in earlier and later times in US history.
Added to timeline:
Date:
9h 53min, dec 1, 1869 y
Now
~ 154 years ago