holidays
Earliest day on which Shrove Tuesday can fall, while March 9 is the latest; celebrated on Tuesday before Ash Wednesday (Christianity)
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Shrove Tuesday
Tuesday before Ash Wednesday
Shrove Tuesday is the final day of Shrovetide, which marks the end of the pre-Lenten season. Lent begins the following day with Ash Wednesday. Shrove Tuesday is observed in many Christian countries through participating in confession, the ritual burning of the previous year's…Source: Wikipedia (CC BY-SA)
Ash Wednesday
First day of Lent in Western Christianity
Ash Wednesday is a holy day of prayer and fasting in many Western Christian denominations. It is preceded by Shrove Tuesday and marks the first day of Lent: the seven weeks of prayer, fasting and almsgiving before the arrival of Easter.Source: Wikipedia (CC BY-SA)