Mon, May 18 Discovery Day Cayman islands Public Holiday
Mon, May 18 Battle of Las Piedras Uruguay Observance
Mon, May 18 Day of Revival, Unity, and the Poetry of Magtymguly Turkmenistan Public Holiday
Mon, May 18 Victoria Day Canada (All Except Ns , Nu , Qc) Common Local Holidays
Mon, May 18 National Patriots' Day Canada (Quebec) Local Holiday
Mon, May 18 Flag Day/University Day Haiti National/legal Holiday
Mon, May 18 International Museum Day Singapore Observance
Mon, May 18 National HIV Vaccine Awareness Day - Weird
Mon, May 18 National Visit Your Relatives Day - Weird
Mon, May 18 National No Dirty Dishes Day - Weird
Mon, May 18 National Cheese Soufflé Day - Weird
Also on this day,
Get to Know Your Customers Day
National Caviar Day
National Sour Candy Day
Nelson Mandela International Day
Perfect Family Day
World Listening Day