Kiribati : public and bank holidays, closure of banks, stock exchanges, school vacations

Secular holiday : Human Rights Day is celebrated annually, by some, across the world on 10 December. The date was chosen to honour the United Nations General Assembly's adoption and proclamation, on 10 December 1948, of the Universal Declaration of Human Rights, the first global enunciation of human rights. The commemoration was established in 1950, when the General Assembly invited all states and interested organizations to celebrate the day as they saw fit Wikipedia

Catholic or protestant : Since pre-historic times in Europe, festivities (bonfires, offrerings) were marking the beginning of longer hours of daylight with fires and ritual. The Roman festival of Saturnalia lasted several days in December (gambling and offerings). Germanic tribes also celebrated mid-winter (drinking and rituals). The Bulgarian (with Koleduvane) and the Polish (with Gwiazdka) perpetuate this tradition. Jesus of Nazareth was probably born in springtime (Reformists favour autumn). But in the 4th century, December 25th was chosen for the celebration of his birth by Pope Julius I (Bishop Liberus is also mentioned in 354 A.D.). Thus, a Christian element was introduced in the long-established mid-winter festivals. Before 1582, the Papal States and other Italian city states celebrated New Year’s Day on Christmas Day.

Secular holiday : The day after Christmas, the Feast of St. Stephen, the first Christian martyr, is better known as Boxing Day. The term may come from the opening of church poor boxes that day; maybe from the earthenware boxes with which boy apprentices collected money at the doors of their masters' clients.

Secular holiday : The world's most widely celebrated holiday, New Years was set on January 1 by Julius Caesar because that was the date the Roman consuls took over their duties. Paid holiday when falling on Saturday or Sunday

Secular holiday : The idea of an international women's day was first put forward at the turn of the 20th century amid rapid world industrialization and economic expansion that led to protests over working conditions. Women from clothing and textile factories staged one such protest on 8 March 1857 in New York City. The garment workers were protesting what they saw as very poor working conditions and low wages. The protesters were attacked and dispersed by police. These women established their first labor union two years later. Wikipedia

Catholic or protestant : The First Council of Nicaea (a gathering of bishops in the early days of Christianity) wanted to find a day to commemorate the crucifixion and resurrection of Christ. This commemoration had to be linked to Jewish holiday traditions, since the last supper of Christ was believed to be a Jewish Passover meal. But the Jewish calendar is based on lunar and solar cycles, so the Easter celebration had to follow the same calendar.

Catholic or protestant : Not a paid holiday

Catholic or protestant : In the year 325, the Council of Nicée determined a date fo Easter. Full Moon would fall the 14th day of a moon month (1). Easter would be marked by the dominical letter(2)and the epactus(3). With the establishment of the equinox ne variatur on March 21, algorithms where elaborated to attribuate a date for Easter whatever the year.
Time between two consecutive new moons: 20 days 12 hours 44 minutes 2.8 - Gives a letter code for the year's calendar Age of the moon on January 1st, minus one unity, 0 being the new moon's age.

Secular holiday : Dedicated to local health situation.