May 17: Armed Forces Day
May 18: International Museum Day
May 19: Man Ray Day
May 20: Weights and Measures Day
May 21: National Bike to Work Day
May 22: National Maritime Day
May 23: World Turtle Day*
They say slow and steady wins the race and in 2000, American Tortoise Rescue started to honor turtles around the world on May 23.
They initiated this holiday in May to bring attention to conserve and help protect turtles. Also, May is when most turtles come out of hibernation and search for their mates.