A complete timeline of Dolly Parton's inspiring life and career

Dolly Parton. Michael Ochs Archives/Getty Images Before Dolly Parton was a country megastar, she grew up in a poor family in rural Tennessee.  She wrote her first song at age 5 and played her first show at Nashville's Grand Ole Opry at 13.  Her family announced her passing at age 80 on Tuesday. Dolly Parton's journey from a humble two-room cabin in rural Tennessee to the bright lights of country music stardom is one of the most inspiring stories in the music industry. Parton, who died at age…