Events that occurred on 18 January.
On Earth
- 1857 - Father Francis, caretaker and "second father" of J.R.R. Tolkien, is born.
- 1934 - J.R.R. Tolkien's poem "Looney" is published in The Oxford Magazine.
- 1944 - J.R.R. Tolkien writes Letter 55.
- 1945 - J.R.R. Tolkien writes Letter 95.
- 1948 - J.R.R. Tolkien writes a letter to J.L.N. O'Loughlin.
- 1948 - J.R.R. Tolkien writes to Rosemary
- 1964 - J.R.R. Tolkien writes a letter to Justin Arundale.
- 1971 - J.R.R. Tolkien writes letter 319a.
- 2010 - Mirkwood: A Novel About JRR Tolkien is published.
In Arda
- T.A. 3019:
- The Fellowship of the Ring rests in Lothlórien.
- Saruman hears of the Fellowship of the Ring and sends a company led by Uglúk to intercept them.