Peelite in the context of "Liberal Party (UK)"

The Whigs were a political party in the Parliaments of England, Scotland, Ireland, Great Britain and the United Kingdom. Between the 1680s and the 1850s, the Whigs contested power with their rivals, the Tories. The Whigs became the Liberal Party when the faction merged with the Peelites and Radicals in the 1850s. Many Whigs left the Liberal Party in 1886 over the issue of Irish Home Rule to form the Liberal Unionist Party, which merged into the Conservative Party in 1912.

The Whigs began as a political faction that opposed absolute monarchy and Catholic emancipation, supporting constitutional monarchism and parliamentary government, but also Protestant supremacy. They played a central role in the Glorious Revolution of 1688 and were the standing enemies of the Roman Catholic Stuart kings and pretenders. The period known as the Whig Supremacy (1714–1760) was enabled by the Hanoverian succession of George I in 1714 and the failure of the Jacobite rising of 1715 by Tory rebels. The Whigs took full control of the government in 1715 and thoroughly purged the Tories from all major positions in government, the army, the Church of England, the legal profession, and local political offices. The first great leader of the Whigs was Robert Walpole, who maintained control of the government from 1721 to 1742, and whose protégé, Henry Pelham, led the government from 1743 to 1754. Great Britain approximated a one-party state under the Whigs until King George III came to the throne in 1760 and allowed Tories back in; however, the Whig Party's hold on power remained strong for many years thereafter. Historians have called the period from roughly 1714 to 1783 the "long period of Whig oligarchy". During the American War of Independence, the Whigs were the party more sympathetic to American independence and the creation of a democracy in the United States.

William Ewart Gladstone (/ˈɡlædstən/ GLAD-stən; 29 December 1809 – 19 May 1898) was a British statesman and Liberal politician, starting as Conservative MP for Newark and later becoming the leader of the Liberal Party.In a career lasting more than 60 years, he was Prime Minister of the United Kingdom for 12 years, spread over four non-consecutive terms (the most of any British prime minister), beginning in 1868 and ending in 1894. He also was Chancellor of the Exchequer four times, for more than 12 years. Gladstone was also Leader of the House of Commons. He was a Member of Parliament (MP) for 60 years, from 1832 to 1845 and from 1847 to 1895; during that time he represented a total of five constituencies.

Gladstone was born in Liverpool to Scottish parents. He first entered the House of Commons in 1832, beginning his political career as a High Tory, a grouping that became the Conservative Party under Robert Peel in 1834. Gladstone served as a minister in both of Peel's governments, and in 1846 joined the breakaway Peelite faction, which eventually merged into the new Liberal Party in 1859. He was chancellor under Lord Aberdeen (1852–1855), Lord Palmerston (1859–1865) and Lord Russell (1865–1866). Gladstone's own political doctrine – which emphasised equality of opportunity and opposition to trade protectionism – came to be known as Gladstonian liberalism. His popularity among the working-class earned him the sobriquet "The People's William".

The Liberal Party was one of the two major political parties in the United Kingdom, along with the Conservative Party, in the 19th and early 20th centuries. Beginning as an alliance of Whigs, free trade–supporting Peelites, and reformist Radicals in the 1850s, by the end of the 19th century, it had formed four governments under William Ewart Gladstone. Despite being divided over the issue of Irish Home Rule, the party returned to government in 1905 and won a landslide victory in the 1906 general election. Under prime ministers Henry Campbell-Bannerman (1905–1908) and H. H. Asquith (1908–1916), the Liberal Party passed reforms that created a basic welfare state. Although Asquith was the party leader, its dominant figure was David Lloyd George.

Asquith was overwhelmed by his wartime role as prime minister and Lloyd George led a coalition that replaced him in late 1916. However, Asquith remained as Liberal Party leader. The split between Lloyd George's breakaway faction and Asquith's official Liberal faction badly weakened the party. The coalition government of Lloyd George was increasingly dominated by the Conservative Party, which finally ousted him as prime minister in 1922. The subsequent Liberal collapse was quick and catastrophic. With 397 MPs elected in the 1906 election; they had only 40 in 1924. Their share of the popular vote plunged from 49% to 18%. The Labour Party absorbed most of the ex-Liberal voters and then became the Conservatives' main rival.