Swap Ideas Day
Swap Ideas Day is held on September 10. This event in the first decade of the month september is annual.
Video Games Day on September 12 (The Nimrod was a computer built and displayed at the Festival of Britain in 1951 and designed to play a game called Nim);
National Pet Memorial Day in US on September 13 (Second Sunday of September);
Hug Your Hound Day on September 13 (Second Sunday of September);