where did the oakland a's come from
Oakland Athletics The Oakland Athletics, often referred to as the A's, are an American professional baseball team based in Oakland, California. They compete in Major League Baseball (MLB) as a member club of the American League (AL) West division. The team plays its home games at the Oakland–Alameda County Coliseum. They have won nine World Series championships, the third-most of all current MLB teams. The 2017 season was the club's 50th while based in Oakland.
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.[4] The team is legally and corporately registered as the San Francisco Forty Niners.[5] 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.