In early 1919, the Socialist Party of America (SPA) was splitting between its socialist right and its communist left, known as the Left Wing Section of the Socialist Party. In May 1919, the Boston SPA, Cleveland SPA, and Left Wing Section of New York City SPA adopted a resolution calling for a national left-wing conference on June 21, 1919. Admittance as "left-wing" was defined as endorsement of the program of the Left Wing Section of NYC SPA.
At the conference, the delegates divided into two groups: The majority, formed around the periodical The Revolutionary Age, wanted to take over SPA at the SPA's September convention in Chicago. The minority wished to exit the SPA and create a Communist Party immediately. The minority withdrew and formed the National Organization Committee for a Communist Party. This group was mainly made up of the suspended language federations and the Socialist Party of Michigan.
The Revolutionary Age majority formed the National Council of the Left Wing Section and began organizing for a takeover of the SPA's convention. However, by late August, the majority of this group decided to abandon this plan and merge into the National Organization Committee to create a new party at a convention in Chicago. A minority, led by Ben Gitlow and John Reed, split with the majority and attempted to infiltrate the Socialist Party convention alone.
Renamed from WCP to Communist Party USA (CPUSA). Lovestone faction won majority. However, Comintern placed Gitlow as Executive Secretary, removing Lovestone.
special delegate convention[1] held at the Hotel Diplomat to nominate presidential ticket; Charlene Mitchell nominated for president and Michael Zagarell nominated for vice president[2]
Convention had "about 300"[6] or "nearly 375" attendees.[7] While CPUSA ultimately made no changes, discussion subjects included incorporating "Socialism of the 21st Century" into the party platform and dropping Marxism–Leninism from the party constitution.
"Over 300" attendees[8] of which "over 200" delegates.[9] Of the 71 members of the new CPUSA National Committee, 28 were women, 14 African-American, 14 Latinx, and 3 LGBTQ. 24 are younger than 50 years old.[10]
William Z. Foster, History of the Communist Party of the United States. New York: International Publishers, 1952. Appendix A. Gives starting dates of all conventions up to 1951.