Events that occurred on 16 January.
 On Earth
- 1937 - Artist Klaus Ensikat is born.
- 1938 - The Observer newspaper publishes a letter asking about the The Hobbit's links to Beowulf, as well as the origins of Tolkien's Hobbits.
- 1965 - The fifteenth and last episode of the Princess-serialization of The Hobbit is published.
- 2005 - The final day of the first "The One Ring Celebration".
 In Arda
- T.A. 3019:
The text mentions that Frodo sees the "sickle Moon". According to astronomy, this moon should really be exactly half-full in 3019, rather than sickle, eight days after the full moon.