22nd century

The 22nd century, defined in the calendar of Earth as the period from 2101 to 2200, was a period of change for Earth. In the early part of the century, Earth reshaped its society under the paternalistic guidance of the Vulcans. The mid-century was a particularly eventful time, with the launch of Earth's first starship capable of speeds up to warp 5, the Xindi attack on Earth, and the Earth-Romulan War. Contacts and alliances made in the 2150s paved the way for the founding of the United Federation of Planets in 2161. (Star Trek: Enterprise)

Decades

Events

In the late 22nd century, the New World Economy took shape in the Federation, and money became obsolete. (VOY: "Dark Frontier")
The Quadros-1 probe was launched by the Federation in the 22nd century. (DS9: "Emissary")
Berlinghoff Rasmussen lived in this century, until he stole a time-pod from a 26th century-time traveler and left for the year 2368. (TNG: "A Matter of Time")
Also during this century, a Bajoran ship carrying Kai Taluno was disabled in the Denorios belt. (DS9: "Emissary")
The 27th century inventor and scientist Kal Dano hid his invention, the Tox Uthat, on the planet Risa. (TNG: "Captain's Holiday")
A 22nd century ancestor of Elizabeth Dehner is noted was having an aptitude for ESP. (TOS: "Where No Man Has Gone Before")
On Cardassia Prime, burial vaults of the First Hebitian civilization are unearthed for the first time. They are plundered by impoverished Cardassians, and most of the artifacts are stolen. (TNG: "Chain of Command, Part II")