St. Stephen's Day commemorates St. Stephen, the first Christian martyr, or protomartyr.
Why is it important?
Saint Stephen's Day, also called the Feast of Saint Stephen, is a Christian saint's day to commemorate Saint Stephen, the first Christian martyr or protomartyr, celebrated on 26 December in Western Christianity and 27 December in Eastern Christianity.
The Eastern Orthodox churches that adhere to the Julian calendar mark Saint Stephen's Day on 27 December according to that calendar, which places it on 9 January of the Gregorian calendar used in secular contexts. In Latin Christian denominations, Saint Stephen's Day Saint Stephen's Day is the second day of Christmastide.
St. Stephen was a Christian deacon in Jerusalem known for his service to the poor and his status as the first Christian martyr (he was stoned to death in AD 36).