Original: While performing shows with the Second City in 1997, Fey submitted several scripts to NBC's variety show Saturday Night Live (SNL), at the request of its head writer Adam McKay, a former performer at Second City.
Simplified: While performing shows with the Second City in 1997, Fey sent several scripts to NBC's Saturday Night Live (SNL). She had been asked to send them by SNLs head writer Adam McKay.