Today is Labor Day in the United States. According to the U.S. Department of Labor’s website, this holiday – celebrated in the U.S. on the first Monday of September – “is a creation of the labor movement and is dedicated to the social and economic achievements of American workers” and “constitutes a yearly national tribute to the contributions workers have made to the strength, prosperity, and well-being of our country.” In 1894, President Grover Cleveland made Labor Day a federal holiday. More information can be found, e.g., here and here.