Frodo Baggins was born in 2968 to Drogo and Primula Baggins. A hobbit, he lived a pleasant childhood in the Shire. Frodo was later adopted as nephew and heir by his wealthy, but fairly distant, relative Bilbo Baggins of Bag End.
In 3001, Frodo inherited the entirety of Bilbo's fortune after his mysterious disappearance at his own 111th birthday party. Among the heirlooms was a golden ring, which was later discovered by the wizard Gandalf to be the One Ring. Frodo had become a ringbearer.
In 3018, Frodo set out with his friends Meriadoc Brandybuck, Peregrin Took, and Samwise Gamgee to bring the ring to Rivendell. There, Frodo volunteered to lead The Fellowship of the Ring to destroy the ring at Mount Doom in Mordor, a task which culminated on March 25, 3019 at the cracks of doom.
Upon returning to the Shire, Frodo played an instrumental role in ridding it of Lotho and Sharkey who had instituted a reign of terror. After overthrowing the two corrupt leaders, Frodo held the office of Mayor from November 3, 3019 to Midyear's Day, 3020, when Will Whitfoot was once again fit to resume his duties.
Between battling intermittant bouts of unexplained illness, Frodo spent the remainder of his time in the Shire finishing Bilbo's Red Book. He eventually titled it "The Downfall of the Lord of the Rings and The Return of the King". Once he had finished, he entrusted the book to his lifelong friend, Sam.
On September 29, 3021, Frodo rode with Sam to the Grey Havens to meet Bilbo and the three Keepers of the Rings. All but Sam sailed across the sea that day, marking the end of the Third Age. Frodo was 53 years old. He had never married and had no children.