San Francisco 49ers
The team was founded in 1946 as a charter member of the All-America Football Conference (AAFC) and joined the NFL in 1949 when the leagues merged. The 49ers were the first major league professional sports franchise based in San Francisco. The name "49ers" comes from the prospectors who arrived in Northern California in the 1849 Gold Rush. The team is legally and corporately registered as the San Francisco Forty Niners. The team began play at Kezar Stadium in San Francisco before moving across town to Candlestick Park in 1970 and then to Levi's Stadium in Santa Clara in 2014.
Oakland Raiders relocation to Las Vegas
Mark Davis further increased the unlikelihood of the Raiders and the 49ers to share Levi's Stadium when he told NFL Network reporter Ian Rapoport that he had no plans to share the stadium but that he did recognize the Raiders' need for a new home and that he hoped the new home would be in Oakland. When Levi's Stadium had its grand opening on July 17, 2014, NFL Commissioner Roger Goodell mentioned to the live crowd that it would make a great home for the Raiders and that the team had to decide whether or not it wanted to play there or build a stadium on the site of the Oakland–Alameda County Coliseum.