Concept
Version 14
Created by Boundless
A Brief History of Organized Labor
![Union membership, 1947-2010](../../../../../../../../../figures.boundless-cdn.com/2095/full/ure-6-unionization-rates-2.jpg)
Union membership, 1947-2010
The graph shows steadily declining union membership in the last 6 decades.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
State of Working America.
http://stateofworkingamerica.org/charts/union-membership-1947-2010/
CC BY-SA 3.0.