Christianity is the largest religion in Scotland. At the 2001 census 65% of the Scottish population was Christian. The Church of Scotland, often known as The Kirk, is recognised in law as the national church of Scotland. It is not an established church and is independent of state control. However, it is the largest religious grouping in Scotland, with 42% of the population. The other major denomination is the Roman Catholic Church, the traditional Christian church of Scotland prior to the Reformation, which claims around 16% of the population, and is especially important in West Central Scotland and the Highlands. There are also around 15,000 each of Baptists, Episcopalians and conservative Presbyterians, with smaller numbers of Quakers, Pentecostal, Gospel Hall. The only churches to witness an increase in attendance are independent churches, which include the popular evangelical wing.

Judaism has been established in Scotland since at least the High Middle Ages. In recent years other religions have established a presence in Scotland, mainly through immigration, though also partly through the attraction of converts. Those with the most adherents are Islam (mainly among immigrants from South Asia), Buddhism, Sikhism and Hinduism. Other minority faiths include the Bahá'í Faith, Rasta and small Neopagan groups. There are also various organisations which actively promote humanism, rationalism and secularism, reflecting the 28% who claim to have no religious beliefs, or did not state a religion.

Scotland (Scottish Gaelic: Alba ([ˈalˠ̪apə]  listen (help·info))) is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the southwest. In addition to the mainland, Scotland constitutes over 790 islands including the Northern Isles and the Hebrides.

Edinburgh, the country's capital and second largest city, is one of Europe's largest financial centres. Edinburgh was the hub of the Scottish Enlightenment of the 18th century, which transformed Scotland into one of the commercial, intellectual and industrial powerhouses of Europe. Glasgow, Scotland's largest city, was once one of the world's leading industrial cities and now lies at the centre of the Greater Glasgow conurbation. Scottish waters consist of a large sector of the North Atlantic and the North Sea, containing the largest oil reserves in the European Union. This has given Aberdeen, the third largest city in Scotland, the title of Europe's oil capital.

John Knox (c. 1514 – 24 November 1572) was a Scottish clergyman and a leader of the Protestant Reformation who brought reformation to the church in Scotland. He was educated at the University of St Andrews or possibly the University of Glasgow and was ordained to the Catholic priesthood in 1536. Influenced by early church reformers such as George Wishart, he joined the movement to reform the Scottish church. He was caught up in the ecclesiastical and political events that involved the murder of Cardinal Beaton in 1546 and the intervention of the regent of Scotland, Mary of Guise. He was taken prisoner by French forces the following year and exiled to England on his release in 1549.

While in exile, The Rev. John Knox was licensed to work in the Church of England, where he quickly rose in the ranks to serve King Edward VI of England as a royal chaplain. In this position, he exerted a reforming influence on the text of the Book of Common Prayer. In England he met and married his first wife, Marjorie. When Mary Tudor ascended the throne and re-established Roman Catholicism, Knox was forced to resign his position and leave the country.

William "Billy" Connolly, Jr., CBE (born 24 November 1942) is a Scottish comedian, musician, presenter and actor. He is sometimes known, especially in his native Scotland, by the nickname 'The Big Yin' ('The Big One'). His first trade, in the early 1960s, was as a welder (specifically a boilermaker) in the Glasgow shipyards, but he gave it up towards the end of the decade to pursue a career as a folk singer in the Humblebums and subsequently as a soloist. In the early 1970s, he made the transition from folk-singer with a comedic persona to full-fledged comedian.

Connolly is also an actor, and has appeared in such films as Indecent Proposal (1993); Muppet Treasure Island (1996); Mrs. Brown (1997), for which he was nominated for a BAFTA; The Boondock Saints (1999); The Man Who Sued God (2001); Water (1985); The Last Samurai (2003); Timeline (2003); Lemony Snicket's A Series of Unfortunate Events (2004); Garfield: A Tail of Two Kitties (2006); Open Season (2006); The X-Files: I Want to Believe (2008); and Open Season 2 (2008). Connolly reprised his role as Noah "Il Duce" MacManus in The Boondock Saints II: All Saints Day. Connolly appears as the King of Lilliput in the 2010 remake of Gulliver′s Travels.

Mary, Queen of Scots (8 December 1542 – 8 February 1587), also known as Mary Stuart or Mary I of Scotland, was queen regnant of Scotland from 14 December 1542 to 24 July 1567 and queen consort of France from 10 July 1559 to 5 December 1560.

Mary was the only surviving legitimate child of King James V of Scotland. She was 6 days old when her father died and she was crowned nine months later. In 1558, she married Francis, Dauphin of France. He ascended the French throne as King Francis II in 1559, and Mary became queen consort of France until she was widowed on 5 December 1560. Mary then returned to Scotland, arriving in Leith on 19 August 1561. Four years later, she married her first cousin, Henry Stuart, Lord Darnley, but their union was unhappy. In February 1567, his residence was destroyed by an explosion, and Darnley was found murdered in the garden.

James Hepburn, 4th Earl of Bothwell, was generally believed to have orchestrated Darnley's death, but he was acquitted of the charge in April 1567, and the following month he married Mary. Following an uprising against the couple, Mary was imprisoned in Loch Leven Castle. On 24 July 1567, she was forced to abdicate in favour of her one-year-old son, James. After an unsuccessful attempt to regain the throne, she fled southwards seeking the protection of her first cousin once removed, Queen Elizabeth I of England. Mary had previously claimed Elizabeth's throne as her own and was considered the legitimate sovereign of England by many English Catholics, including participants in a rebellion known as the Rising of the North. Perceiving her as a threat, Elizabeth had her confined in a number of castles and manor houses in the interior of England. After 18 years and 9 months in custody, Mary was tried and executed for her involvement in plots to assassinate Elizabeth.