Conservative Party

The Conservative Party was founded in 1834 from the Tory Party—the Conservatives' colloquial name is "Tories"—and was one of two dominant political parties in the nineteenth century, along with the Liberal Party. Under Benjamin Disraeli, it played a preeminent role in politics at the height of the British Empire. In 1912, the Liberal Unionist Party merged with the party to form the Conservative and Unionist Party. In the 1920s, the Labour Party surpassed the Liberals as the Conservatives' main rivals. Conservative Prime Ministers, most notably Winston Churchill and Margaret Thatcher, led governments for 57 years of the twentieth century.