Good Friday, also called Holy Friday, Black Friday, or Great Friday, is a holiday observed primarily by adherents to Christianity commemorating the crucifixion of Jesus and his death at Calvary. The holiday is observed during Holy Week as part of the Paschal Triduum on the Friday preceding Easter Sunday, and often coincides with the Jewish observance of Passover. Based on the scriptural details of the Sanhedrin Trial of Jesus, the Crucifixion of Jesus was most probably on a Friday. The estimated year of Good Friday is AD 33, by two different groups, and originally as AD 34 by Isaac Newton via the differences between the Biblical and Julian calendars and the crescent of the moon. A third method, using a completely different astronomical approach based on a lunar Crucifixion darkness and eclipse model (consistent with Apostle Peter's reference to a "moon of blood" in Acts 2:20) arrives at the same date, namely Friday April 3, AD 33.

All Saints' Day (in the Catholic Church officially the Solemnity of All Saints and also called All Hallows or Hallowmas), often shortened to All Saints, is a solemnity celebrated on 1 November in Western Christianity, and on the first Sunday after Pentecost in Eastern Christianity, in honour of all the saints, known and unknown. In terms of Western Christian theology, the day commemorates all those who have attained the beatific vision in Heaven. In the Roman Catholic Church, the next day, All Souls' Day, specifically commemorates the departed faithful who have not yet been purified and reached heaven. It is a national holiday in many historically Catholic countries.

The Immaculate Conception is, according to Roman Catholic doctrine, the conception of the Virgin Mary without any stain ("immacula" in Latin) of original sin. It is one of the four dogmas in Roman Catholic Mariology. Under this aspect Mary is sometimes called the Immaculata (the Immaculate One), particularly in artistic contexts. The dogma states that, from the first moment of her existence, Mary was preserved by God from the lack of sanctifying grace that afflicts mankind and that she was instead filled with divine grace. It is further said by Catholics that she lived a life completely free from sin. Belief in Mary's immaculate conception in the womb of her mother, through sexual intercourse, should not be confused with the doctrines of the virginal conception of her son Jesus, known as the Annunciation and the Virgin Birth. The feast of the Immaculate Conception, celebrated on 8 December, was established as a universal feast in 1476 by Pope Sixtus IV. He did not define the doctrine as a dogma, thus leaving Roman Catholics free to believe in it or not without being accused of heresy; this freedom was reiterated by the Council of Trent. The existence of the feast was a strong indication of the Church's belief in the Immaculate Conception, even before its 19th century definition as a dogma. The Immaculate Conception was solemnly defined as a dogma by Pope Pius IX in his constitution Ineffabilis Deus on 8 December 1854. The Catholic Church teaches that the dogma is supported by Scripture (e.g., Mary's being greeted by the Angel Gabriel as "full of grace") as well as either directly or indirectly by the writings of Church Fathers such as Irenaeus of Lyons and Ambrose of Milan. Catholic theology maintains that since Jesus became incarnate of the Virgin Mary, it was fitting that she be completely free of sin for expressing her fiat. In 1904 Pope Saint Pius X also addressed the issue in his Marian encyclical Ad Diem Illum on the Immaculate Conception. In the Catholic Church the Solemnity of the Immaculate Conception is a Holy Day of Obligation, except where conferences of bishops have decided, with the approval of the Holy See, not to maintain it as such. It is a public holiday in some countries where Roman Catholicism is predominant.

In countries which use the Gregorian calendar, New Year's Day is usually celebrated on 1 January. The order of months in the Roman calendar has been January to December since King Numa Pompilius in about 700 BC, according to Plutarch and Macrobius. However, Roman writers identified years by naming the year's consuls, who did not enter office on 1 January until 153 BC. Since then 1 January has been the first day of the year, except during the Middle Ages when several other days were the first (1 March, 25 March, Easter, 1 September, 25 December). With the expansion of Western culture to the rest of the world during the twentieth century, the 1 January date became global, even in countries with their own New Year celebrations on other days (e.g., China and India). At present, the celebration of the New Year is a major event worldwide. Many large-scale events are held in major cities around the world, with many large fireworks events on New Year's Eve (31 December). Sydney launched over 80,000 fireworks at midnight, and had more than one and a half million attendees; it was also the most-watched event on television worldwide last year. In Valparaiso upwards of two million visitors witnessed the largest fireworks display in a natural setting; a total of more than 21 kilometers of fireworks on the bay, from the commercial port city of Valparaiso to Concon, Chile, all in 25 minutes of entertainment. London's New Year celebrations centre around the London Eye, with an impressive fireworks display while Big Ben strikes midnight. In New York, the celebration is focused around a large crystal ball that descends in a one minute countdown in Times Square. Edinburgh plays host to one of the world's largest Hogmanay events. The celebrations last for four days and attract visitors from around the globe to take part in street parties and attend concerts. In the culture of Latin America there are a variety of traditions and superstitions surrounding these dates as omens for the coming year. January remains a symbol of the New Year's celebration. According to the Christian tradition, 1 January coincides with the circumcision of Christ (eight days after birth), when the name of Jesus was given to him (Luke 2: 21).

International Workers' Day (a name used interchangeably with may day) is a celebration of the social and economic achievements of the international labor movement. May Day commonly sees organized street demonstrations and street marches by millions of working people and their labour unions throughout most of the countries of the world.

The Naval Combat of Angamos was an important struggle in the War of the Pacific. The Peruvian ironclad Huascar was surrounded and captured by the Chilean Navy in October 8, 1879. The captain of the ironclad, Peruvian Admiral Miguel Grau, was killed in the combat. After this battle, The Peruvian Navy was unable to prevent the invasion of its territory. The seas were cleared for the invasion of Peru and Bolivia.

The Feast of Saints Peter and Paul, or the Solemnity of Saints Peter and Paul, is a liturgical feast in honour of the martyrdom in Rome of the apostles Saint Peter and Saint Paul, which is observed on 29 June. The celebration is of ancient origin, the date selected being the anniversary either of their death or of the translation of their relics.

Our Lady of Mount Carmel is the title given to the Blessed Virgin Mary, in her role as patroness of the Carmelite Order. The first Carmelites were Christian hermits living on Mount Carmel in the Holy Land during the late 12th and early to mid 13th centuries. They built a chapel in the midst of their hermitages which they dedicated to the Blessed Virgin, whom they conceived of in chivalric terms as the "Lady of the place."

According to the belief of Christians of the Catholic Church, the Eastern Orthodox, and Oriental Orthodox churches and by some Anglicans, the Assumption of Mary was the bodily taking up of the Virgin Mary into Heaven at the end of her life. The Catholic Church teaches as dogma that Mary, "having completed the course of her earthly life, was assumed body and soul into heavenly glory." This doctrine was dogmatically and infallibly defined by Pope Pius XII on November 1, 1950, in his Apostolic Constitution Munificentissimus Deus. This belief is known as the Dormition by the Orthodox. In the churches which observe it, the Assumption is a major festival, commonly celebrated on August 15. In many countries it is a Catholic Holy Day of Obligation. In his August 15, 2004, homily given at Lourdes, Pope John Paul II quoted John 14:3 as one of the scriptural bases for understanding the dogma of the Assumption of Mary. In this verse, Jesus tells his disciples at the Last Supper, "If I go and prepare a place for you, I will come again, and will receive you to myself; that where I am, you may be there also." According to Catholic theology, Mary is the pledge of the fulfillment of Christ's promise.

Linking their independence to their military might, Chileans celebrate their Armed Forces Day the day after Independence Day. It commemorates the military victories over the Spanish forces, led in part by the national hero, Bernardo O'Higgins, Liberator de Chile with assistance from Jose de San Martin.

Many countries in the New World and elsewhere celebrate the anniversary of Christopher Columbus's arrival in the Americas, which occurred on October 12, 1492, as an official holiday. The event is celebrated as Columbus Day in the United States, as Día de la Raza in many countries in the Americas, as Discovery Day in the Bahamas, as Día de la Hispanidad and Fiesta Nacional in Spain and as Día de las Américas (Day of the Americas) in Uruguay. These holidays have been celebrated unofficially since the late 18th century, and officially in various countries since the early 20th century.

Reformation Day is a religious holiday celebrated on October 31 in remembrance of the Reformation, particularly by Lutheran and some Reformed church communities. It is a civic holiday in Slovenia (since the Reformation contributed to its cultural development profoundly, although Slovenes are mainly Roman Catholics) and in the German states of Brandenburg, Mecklenburg-Vorpommern, Saxony, Saxony-Anhalt, and Thuringia. It is also a national holiday in Chile since 2008. Most churches transfer the festival, so that it falls on the Sunday (called Reformation Sunday) on or before October 31 and transfer All Saints' Day to the Sunday on or after November 1.

Christmas or Christmas Day is an annual Christian holiday commemorating the birth of Jesus Christ. It is celebrated on December 25, but this date is not known to be Jesus' actual birthday, and may have initially been chosen to correspond with either the day exactly nine months after some early Christians believed Jesus had been conceived, a historical Roman festival, or the date of the northern hemisphere's winter solstice. Christmas is central to the Christmas and holiday season, and in Christianity marks the beginning of the larger season of Christmastide, which lasts twelve days