Bilbo Baggins celebrates his birthday on 22 September in J.R.R. Tolkien’s The Lord of the Rings.
Bilbo’s 111th birthday is the occasion for the large party that opens the novel. He shares the date with Frodo Baggins, who was born on the same day in 2968 of the Third Age. Bilbo uses the celebration to make his dramatic departure from Hobbiton and leaves the One Ring to Frodo.
The date has become an important Tolkien commemorative date. Tolkien himself was born on 3 January, so 22 September is not his birthday. Fans often observe 22 September as Hobbit Day, while 25 September is commonly associated with Tolkien Reading Day because it marks the fictional date of the Ring’s destruction in 3019.