British Mariana Liberal Party

The British Mariana Liberal Party (BMLP, originally known as the Radical Party) was a liberal political party in Enderron that existed from 1840 to 1907. For a majority of its history it adhered to the centre of the Enderronian political spectrum, and its main rival was the Conservative Party of British Mariana.

The British Mariana Liberal Party is generally regarded as Enderron's first ever organised political party, as its predecessor, the Progressive Party, was more of a loose political movement. The Liberal Party first came to power in the 1840 election under founding leader Thomas Southcott. The Southcott Government was defeated by Henry Bassinger and the Conservative Party in 1843 but returned a year later after Bassinger lost confidence of the parliament, and lasted until 1850. The Liberals governed again from 1857 to 1861 and then 1870 to 1871 (a single term each time). Under the leadership of Charles Leighton, the Liberals governed for 14 unbroken years and won six straight elections from 1875 to 1889. The Leighton Government was instrumental in implementing signature Liberal policies, particularly the early foundations of the later welfare state and industrial relations, as well as universal male suffrage. The Liberals were also generally supportive of increased autonomy from the United Kingdom and improving relations with Enderron's Asian neighbours, particularly Japan.

The Liberals fragmented in the late 1890s and early 1900s, with the left wing of the party splitting to form the Democratic Party of Enderron, while the remaining centrist and right-leaning factions eventually merged with their longtime rival, the Conservatives, in 1907 to form the Enderron People's Party.