Why do we celebrate Saint Patrick's Day?

Every March 17th, in many places in the United States and in Ireland, they celebrate Saint Patrick's Day, but do you know where this story originated?

Saint Patrick was born in the year 387 in Kilpatrick, Scotland. His father was a Roman army officer. Irish pirates took the 16-year-old Patrick prisoner and sold him as a slave. He spent six years in that place and learned to speak the Celtic language. He managed to escape and went to France, where he was ordained a priest. At the age of 46, he decided to return to Ireland to evangelize its inhabitants. And there he remained for nearly three decades, until his death on March 17, 461.

Christian tradition says that Patrick explained the mystery of the Holy Trinity using a three-leaf clover. That is why it is a custom to wear a shamrock during the celebration that day. It is also common to dress in green and even dye beer this color in honor of Ireland, also nicknamed the "Emerald Isle."