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Labor Day - Wikipedia
Labour Day - Wikipedia
Labor Day | Definition, History, & Facts | Britannica
Labor Day 2022: Facts, Meaning & Founding | HISTORY
What is Labor Day and why do we celebrate the holiday? What to …
What is Labor Day and why do we celebrate it? | CNN
Labor Day's surprisingly radical origins - National Geographic
A History of Labor Day - The New York Times
Labor Day history: 3 pivotal moments in the modern workers' movement - NPR
History of Labor Day | U.S. Department of Labor