Today is St.David's Day. So to celebrate, here are 10 things you really ought to know about the Welsh national day. 1. St David’s Day falls every year on March 1. This was the date patron saint of Wales, St. David died in 589. 2. It wasn’t until the 18th century though that St David’s Day was declared a national day of celebration in Wales. 3. Saint David is typically depicted holding a dove, and often standing on a hillock. His symbol is the leek. 4. In 2007 Tony Blair rejected calls for St. David’s Day to become a Welsh...