"St George is the patron saint of England. His emblem, a red cross on a white background, is the flag of England, and part of the British flag. St George's emblem was adopted by Richard The Lion Heart and brought to England in the 12th century. The king's soldiers wore it on their tunics to avoid confusion in battle... [o]ne of the best-known stories about St George is his fight with a dragon. But it is highly unlikely that he ever fought a dragon, and even more unlikely that he ever actually visited England. Despite this, St George is known throughout the world as the dragon-slaying patron saint of England."St. George's Day: A Site for England
Woodlands Junior School's St. George's Day Entry
Celebrating St. George's Day
The BBC's Brief St. George's Day Entry
Wikipedia Entry on St. George's Day
Answers.com St. George's Day Entry
Today is also celebrated as Shakespeare's birthday.