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.
San Francisco 49ers
The 49ers sponsored "Measure J", which appeared on the June 8, 2010 Santa Clara ballot, to build a new stadium as the future home of the San Francisco 49ers in that city. The measure passed with 58.2% of the total vote. This was seen as the first step for the 49ers stadium relocation to a new venue to be built in Santa Clara.