Tradition: Christianity-Orthodox
Link: http://www2.hds.harvard.edu/spiritual/multifaith_about.html
In Orthodox churches, the first day of Lent marks the beginning of the Great Fast, the final six weeks of a 10-week period leading up to Holy Week and Easter (Pascha). In the churches that follow the Gregorian calendar, Lent is a six-week observance (40 days excluding Sundays) beginning with Ash Wednesday and culminating in Holy Week. It is a time of repentance and sacrifice in preparation for Easter.