|2189 2190 2191 2192 2193 2194 2195|
|2160s 2170s 2180s 2190s 2200s 2210s 2220s|
|21st century - 22nd century - 23rd century|
- April 4 - Jonathan Archer and Leah Benson attend a Federation banquet celebrating the admission of Cait, the Xyrillian home world and Denobula to the Federation (In Between Days: Bread).
- April 6 - Leah Benson (mirror) defects to Andoria (In Between Days: Bread).
- May 20 - Andrew Miller (mirror) commits suicide by ingesting a tricoulamine capsule (In Between Days: Escape). A pulse shot allows temporal outlaw Milton Walker to cross over to the Mirror universe, where he meets, and is seduced by, Hoshi Sato (mirror) (Times of the HG Wells: The Point is Probably Moot).
- May 25 - Lili O'Day and Malcolm Reed's 25th Wedding anniversary (Times of the HG Wells: The Point is Probably Moot).
- Jonathan Archer steps down as Federation President. (ENT: "In a Mirror, Darkly, Part II").