St. Patrick's Day originated as a Christian holiday to honor St. Patrick, the patron saint of Ireland who converted many Irish to Christianity in the 5th century. It has since evolved into a global celebration of Irish culture. Traditions include attending church, eating Irish bacon and cabbage, drinking, and participating in parades where the Chicago River is dyed green. Symbols of St. Patrick's Day include the Celtic cross, shamrock, and leprechaun. Irish music, dance, and names are also celebrated around this holiday.