July 1, 1911 - The Hotel and Restaurant Employees Union awards a charter to the Minneapolis waiters union.
July 1, 1922 - Railroad shop workers walked off their jobs in what became known as the “Big Strike.” The unions eventually lost and many members were blacklisted.
Read more about "The Big Strike" in this article in the Workday Minnesota history section: http://www.workdayminnesota.org/index.php?news_6_2968