October 20 is the 293rd day of the year in the Gregorian calendar, with 72 days remaining until the end of the year. It is often associated with the changing of seasons, as many regions experience autumn during this time. Several notable events have occurred on this date throughout history. For example, in 1803, the United States Senate ratified the Louisiana Purchase, which significantly expanded the country's territory. Additionally, in 1973, the Saturday Night Massacre took place during the Watergate scandal, leading to significant political repercussions.