November 23 is the 327th day of the year in the Gregorian calendar, with 38 days remaining until the end of the year. It is often associated with various historical events and observances, including the celebration of Thanksgiving in the United States, which occurs on the fourth Thursday of November. On this day, several notable events have taken place throughout history. For example, in 1963, the first episode of the iconic British television series Doctor Who aired. Additionally, November 23 is recognized as the International Day of Mourning for workers killed or injured on the job.