Pacific Coast Conference

The Pacific Coast Conference (PCC) was a college athletic conference in the United States, now defunct. Though the Pac-10 claims the PCC as part of its history, the PCC had a completely different charter and was disbanded in 1959 due to a major crisis and scandal.

By 1957 the conference had fallen apart, leading to the decision to dissolve in 1959. Soon after the PCC was dissolved, several of its former members (Califonia, Washington, UCLA, USC, and Stanford) created the Athletic Association of Western Universities (AAWU). Eventually Oregon, Oregon State, and Washington State would join this coalition, but members were not required to play other members. Tensions were high between UCLA and Stanford, as Stanford had voted for UCLA's expulsion from the PCC.

Despite all this, the AAWU eventually strengthened its bonds and became the Pacific-8 Conference, which eventually became the Pacific-10 Conference.

Source: Wikipedia