Question: When did the chargers become los angeles chargers?

Disambiguated questions and answers:
context: The Los Angeles Chargers are a professional American football team based in the Greater Los Angeles area. The Chargers compete in the National Football League (NFL) as a member club of the league's American Football Conference (AFC) West division. The team was founded on August 14, 1959, and began play on September 10, 1960, as a charter member of the American Football League (AFL), and spent its first season in Los Angeles, before moving to San Diego in 1961 to become the San Diego Chargers. The Chargers joined the NFL as result of the AFL–NFL merger in 1970, and played their home games at SDCCU Stadium. The return of the Chargers to Los Angeles was announced for the 2017 season, just one year after the Rams had moved back to the city from St. Louis. The Chargers played their home games at Dignity Health Sports Park, formerly named StubHub Center, from 2017 to 2019. Starting in 2020, they will play their home games at SoFi Stadium, which they will share with the Los Angeles Rams.
question: When did the Chargers become Los Angeles Chargers originally?
short_answers: 1960
wikipage: Los Angeles Chargers
context: The Los Angeles Chargers are a professional American football team based in the Greater Los Angeles area. The Chargers compete in the National Football League (NFL) as a member club of the league's American Football Conference (AFC) West division. The team was founded on August 14, 1959, and began play on September 10, 1960, as a charter member of the American Football League (AFL), and spent its first season in Los Angeles, before moving to San Diego in 1961 to become the San Diego Chargers. The Chargers joined the NFL as result of the AFL–NFL merger in 1970, and played their home games at SDCCU Stadium. The return of the Chargers to Los Angeles was announced for the 2017 season, just one year after the Rams had moved back to the city from St. Louis. The Chargers played their home games at Dignity Health Sports Park, formerly named StubHub Center, from 2017 to 2019. Starting in 2020, they will play their home games at SoFi Stadium, which they will share with the Los Angeles Rams.
question: When did the San Diego Chargers become Los Angeles Chargers?
short_answers: 2017
wikipage: Los Angeles Chargers

Long-form answers:
knowledge: content: Chargers owner Dean Spanos announced the relocation in a letter to the city of San Diego posted to the team's official site on January 12, 2017
wikipage: Los Angeles Chargers 2017–present: Return to Los Angeles
content: announced it would be returning to their birthplace in Los Angeles starting with the 2017 season
wikipage: Los Angeles Chargers 2017–present: Return to Los Angeles
long_answer: The Los Angeles Chargers were founded on August 14, 1959, and began play on September 10, 1960. The team spent its first season in Los Angeles before moving to San Diego in 1961 to become the San Diego Chargers. On January 12, 2017, Chargers owner Dean Spanos announced the team  would be returning to their birthplace in Los Angeles starting with the 2017 season. Since the 2017 season, the Los Angeles Chargers have been based in the Greater Los Angeles area.