Every year, on March 17, we see people wearing green clothing. We know it must be St. Patrick's Day. St. Patrick's Day is celebrated all over the world, wherever there are people of Irish background. Some celebrate by wearing green, others by going to church, and others with parties. 

People have been celebrating St. Patrick's Day for nearly 1600 years now. But just who was St. Patrick? What did he do that has made him so well loved today? And why do we celebrate his day by wearing shamrocks and green clothing? You'll find the answers to these questions and many more in St. Patrick's Day. 

From the dust jacket