- 2664 - This is the earliest date the microbrains of Velara III will consider for re-opening communications with the Federation. (TNG: "Home Soil")
- The scientist Kal Dano creates the Tox Uthat, a powerful device that can halt all nuclear fusion in a star. Fearing someone may steal it, he transports it to Risa in the 22nd century. Later, two Vorgon criminals, Ajur and Boratus, travel to the 24th century to find the Tox Uthat. (TNG: "Captain's Holiday")
- The hundred infant Changelings were meant to return home to the Great Link.
|26th century||Timeline||28th century|