Events that occurred on 28 June.
 On Earth
- 1915 - J.R.R. Tolkien applies at the Oxford recruiting office to join the army.
- 1915 - Scholar and friend of J.R.R. Tolkien Przemyslaw Mroczkowski is born.
- 1919 - The Treaty of Versailles is signed and the first world war officially ends.
- 1981 - The seventeenth episode of the 1981 radio series of The Lord of the Rings is aired on BBC Radio 4.
- 1982 - Artist Ray Dillon is born.
- 2000 – The Tolkien Ensemble publish their second album, A Night in Rivendell.
 In Arda
- There are no known events on this day.