Bilbo Baggins had played Frodo in the BBC radio series 20 years earlier. The movies omit the 17-year gap between Bilbo's 111th birthday and Frodo's departure from the Shire, as a result Bilbo mentions in Rivendell that he was unable to revisit the Lonely Mountain before his retirement. In Peter Jackson's "The Hobbit" film series, a prequel to "The Lord of the Rings", the young Bilbo is portrayed by Martin Freeman while Ian Holm reprises his role as an older Bilbo in "" (2012) and "" (2014). The International Astronomical Union names all colles (small hills) on Saturn's moon Titan after characters
Bilbo Baggins oldest Hobbit ever in Middle-earth. (The natural lifespan of Hobbits is about 100 years.) According to Appendix C of "The Lord of the Rings", Bilbo was born to Bungo Baggins and Belladonna Took in , or S.R. 1290. "The Lord of the Rings" gives the date of Bilbo's birthday as 22 September, but the actual date in the Shire calendar was Halimath 22; Tolkien tells us in Appendix D that he "used our modern names" for the months "to avoid confusion, while the seasonal implications of our names are more or less the same", so that Halimath is translated as