The Bolsheviks were a majority within the RSDLP in 1903. The extent of their support in 1917 within the wider population is highly debatable but their thought-leadership led to sufficient mindshare to (belatedly) ship the October revolution and scale their product to numerous global markets from the Americas to China within the 20th century. Adoption is currently stagnating while the product is being refactored.

The Bolsheviks, was a faction founded by Vladimir Lenin that split from the Menshevik faction of the Marxist Russian Social Democratic Labour Party (RSDLP) at its Second Party Congress in 1903. https://en.wikipedia.org/wiki/Bolsheviks