History Shorts: The Night Before D-Day Under the cover of darkness, the Allies pulled off an operation in the hours before D-Day that may have changed the tide of the battle before it had begun. Labor Day, celebrated on the first Monday of September since Congress made the holiday official in 1894, marked the symbolic end of summer and the time for a wardrobe shift. Discover what happened on September 12 with HISTORY& 8217;s summaries of major events, anniversaries, famous births and notable deaths. Also on This Day in History Discover more of the major events, famous births, notable deaths and everything else history-making that happened on March 21st Also on This Day in History Discover more of the major events, famous births, notable deaths and everything else history-making that happened on March 25th Labor Day, an annual celebration of workers and their achievements, originated during one of American labor history’s most dismal chapters. Five days of work and two days of play is how most Americans structure their lives. But the 40-hour, 5-day work week wasn’t enshrined until the passage of the Fair Labor Standards Act in 1938. History happens every day! Check in with your virtual assistant or wherever you get your podcasts to find out about the historical events that happened on this day and every other day of the year. Discover what happened on July 21 with HISTORY& 8217;s summaries of major events, anniversaries, famous births and notable deaths. Also on This Day in History Discover more of the major events, famous births, notable deaths and everything else history-making that happened on June 12th.