May 10 is the 130th day of the year in the Gregorian calendar, with 235 days remaining until the end of the year. It is often associated with various historical events, celebrations, and observances around the world. On this day, several notable events have occurred, including the founding of the United States Postal Service in 1775 and the first successful ascent of Mount Everest by Sir Edmund Hillary and Tenzing Norgay in 1953. Additionally, May 10 is recognized as Mother's Day in some countries, honoring mothers and maternal figures.