Progressive Party (United States, 1912)
The Progressive Party was a third party in the United States formed in 1912 by former President Theodore Roosevelt after he lost the presidential nomination of the Republican Party to his former protégé, incumbent President William Howard Taft. The new party was known for taking advanced positions on progressive reforms and attracting some leading reformers. After the party's defeat in the 1912 presidential election, it went into rapid decline, disappearing by 1918. The Progressive Party was popularly nicknamed the "Bull Moose Party" since Roosevelt often said that he felt "strong as a bull moose" both before and after an assassination attempt on the campaign trail.
Communist Party of the Soviet Union
The Communist Party of the Soviet Union (CPSU) was the founding and ruling political party of the Soviet Union. The CPSU was the sole governing party of the Soviet Union until 1990, when the Congress of People's Deputies modified Article 6 of the most recent 1977 Soviet constitution, which had granted the CPSU a monopoly over the political system. The party was founded in 1912 by the Bolsheviks (a majority faction of the Russian Social Democratic Labour Party, RSDLP), led by Vladimir Lenin, which seized power in the October Revolution, the second of the Russian Revolutions of 1917.