What is Epiphany and when does it occur?

In Western Christianity it is/begins Jan.6th. Epiphany means to reveal of make known. It originates from the Wise Men's visit to the baby Jesus thereby making him known to the world. Religous doctrines define the period in various time spans. For some Protestant faiths it begins Jan.6 and continues until Ash Wednesday. The word "epiphany" also means to have a sudden understanding or insight. Epiphany happens 12 days after Christmas (usually January 6), and it is to celebrate the visit of the 3 wise men to the infant Jesus.