On April 15, 2015, fast-food workers, home-care and day-care workers, adjunct faculty at colleges and universities, airport workers, and labor union members in 236 U. S. cities went on strike to raise the minimum wage to $15 an hour. A national minimum wage was originally established in .
The minimum wage since 2009—$7.25 per hour—works out to a yearly income of for a full-time worker.
About of workers in the United States earn less than $15 per hour.
Among racial/ethnic groups, are most likely to be earning less than $15 per hour.