Short answers, pulled from the story.
The original members were Florence Ballard, Mary Wilson, Diana Ross, and Betty McGlown, who met in 1958 at the Brewster-Douglass public housing projects in Detroit. The group formed when manager Milton Jenkins decided to create a sister act after McGlown began singing with the Primes, leading Ballard to recruit Wilson and Williams to recruit Ross.
The Supremes reached number one on the US pop charts in August 1964 with the song Where Did Our Love Go. This single marked the beginning of an unprecedented run of success that included four consecutive US number one hits.
Florence Ballard was dismissed from the group in 1967 due to excessive drinking and depression that led to embarrassing on-stage incidents. She was permanently removed after a concert on the 1st of July 1967, and her release from Motown was made final on the 22nd of February 1968.
Diana Ross officially left The Supremes on the 14th of January 1970 after their final performance at the Frontier Hotel in Las Vegas. Jean Terrell was signed to Motown and became her replacement, leading the group through the early 1970s.
The Supremes were disbanded in 1977 when Motown decided to end the group without any original members. The 9th U.S. Circuit Court of Appeals ruled in 1999 that Motown owns the name and had allowed other groups to use it.
The Ross-Wilson-Ballard lineup was inducted into the Rock and Roll Hall of Fame in 1988 and received a Grammy Lifetime Achievement Award at the 65th Annual Grammy Awards in 2023.