According to Mike, "Leap Year is fascinating. It’s seriously like a ridiculously hard math problem that humankind has been collectively working on through the ages."
Discover more during this Leap Year, where Thursday represents Leap Day on Feb. 29, a date that recurs every four years, which brings with it unique traditions celebrated worldwide.
Proposals, noodles and a special cocktail: Leap year celebrations around the world itv.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from itv.com Daily Mail and Mail on Sunday newspapers.