Clean Up Your Room Day
Clean Up Your Room Day is held on May 10. This event in the first decade of the month may is annual.
Twilight Zone Day on May 11 (The television show The Twilight Zone, was created, written and narrated by Rod Serling. It premiered on October 1, 1959);
Limerick Day on May 12 (celebrates the birthday of Writer Edward Lear: 1812-1888. Limericks were popularized by Lear in 1846 in his Book of Nonsense);
Odometer Day on May 12 (The odometer was invented by William Clayton in 1847)