Christmas Day in the context of "Annunciation to the shepherds"

A martyr (Greek: μάρτυς, mártys, 'witness' stem μαρτυρ-, martyr-) is someone who suffers persecution and death for advocating, renouncing, or refusing to renounce or advocate, a religious belief or other cause as demanded by an external party. In colloquial usage, the term can also refer to any person who suffers a significant consequence in protest or support of a cause.

In the martyrdom narrative of the remembering community, this refusal to comply with the presented demands results in the punishment or execution of an individual by an oppressor. Accordingly, the status of the 'martyr' can be considered a posthumous title as a reward for those who are considered worthy of the concept of martyrdom by the living, regardless of any attempts by the deceased to control how they will be remembered in advance. Insofar, the martyr is a relational figure of a society's boundary work that is produced by collective memory. Originally applied only to those who suffered for their religious beliefs, the term has come to be used in connection with people killed for a political cause.

The Martyrs of Nicomedia an incidence of the persecution of Christians in the Roman Empire, perpetrated against the Christian population of Nicomedia on Christmas Day, 304 AD. In the event, around several thousand to 20,000 people (depending on the account) were massacred by Roman soldiers under Emperor Maximian, most of whom were brutally tortured (or even burned alive in a church, according to some sources). This was not the first time that large numbers of Christians were massacred in Nicomedia or other parts of the Roman Empire.

Boxing Day, also known as Offering Day, is a holiday celebrated after Christmas Day, occurring on the second day of Christmastide (26 December). Boxing Day was once a day to donate gifts to those in need, but it has evolved to become a part of Christmas festivities. It originated in the United Kingdom and is celebrated in several Commonwealth nations. The attached bank holiday or public holiday may take place on 27 or 28 December if necessary to ensure it falls on a weekday. Boxing Day is also concurrent with the Christian festival Saint Stephen's Day.

In parts of Europe, such as east Spain, (Catalonia, Valencia and the Balearic Islands), the Czech Republic, Germany, Austria, Hungary, the Netherlands, Italy, Poland, Slovakia, Slovenia, Croatia, Denmark, Finland, Romania, Sweden, Belgium, Norway, Latvia and Ireland, 26 December is Saint Stephen's Day, which is considered the second day of Christmas.

Christmastide, also known as Christide, is a season of the liturgical year in most Christian churches.

For the Catholic Church, Lutheran Church, Anglican Church, Methodist Church and some Orthodox Churches, Christmastide begins on 24 December at sunset or Vespers, which is liturgicus the beginning of Christmas Day. Most of 24 December is thus not part of Christmastide, but of Advent, the season in the Church Year that precedes Christmastide. In many liturgical calendars Christmastide is followed by the closely related season of Epiphanytide that commences at sunset on 5 January—a date known as Twelfth Night.

The Twelve Days of Christmas, also known as the Twelve Days of Christmastide, are the festive Christian season celebrating the Nativity.

Christmas Day is the First Day. The Twelve Days are 25 December to 5 January, counting first and last. The Octave, or Eighth Day, is New Year's Day and the Feast of the Circumcision, the day Jesus was circumcised in accordance with the Jewish faith. The evening of the last day of the Twelve Days of Christmastide is Twelfth Night or Epiphany Eve, with the next morning being Epiphany, which commences the season of Epiphanytide in certain traditions.

Twelfth Night (also known as Epiphany Eve depending upon the tradition) is a Christian festival on the last night of the Twelve Days of Christmas, marking the coming of the Epiphany. Different traditions mark the date of Twelfth Night as either 5 January or 6 January, depending on whether the counting begins on Christmas Day or 26 December. January 6 is celebrated as the feast of Epiphany, which begins the Epiphanytide season.

A superstition in some English-speaking countries suggests it is unlucky to leave Christmas decorations hanging after Twelfth Night, a tradition also variously attached to Candlemas (which marks the end of Epiphanytide on 2 February), as well as Good Friday, Shrove Tuesday, and Septuagesima. Other popular customs include eating king cake, singing Christmas carols, chalking the door, having one's house blessed, merrymaking, and attending church services.

Luke 2 is the second chapter of the Gospel of Luke in the New Testament, traditionally attributed to Luke the Evangelist, a companion of Paul the Apostle on his missionary journeys. It contains an account of Jesus's birth in Bethlehem, "its announcement and celebration", his presentation in the Second Temple, and an incident from his childhood. Verses 1–14 are often read during services of worship on Christmas Day.