2243
A group of Tibetans discover, and colonise, New Lhasa.

2267
Gorn attacks on Cestus III and surrounding colonies: some refugees join New Lhasa.

2268
First contact with the Tholians as an adjustment of their "borders" brings New Lhasa into their claimed space. USS Enterprise encounters the Tholians.

2269
First Battle of New Lhasa. Loss of the USS Ark Royal. Sacrifice of the USS Colmbia severely damages the Tholian fleet and enables a Federation victory. The wreck of the Colombia becomes a planetary government.

2293
Explosion of Praxis. A Klingon monastory leads a group of Klingons to New Lhasa.

2352-2360
The Tholian War.

2360
The Tholian accords - a framework for a complete and eventual peace - are signed.

2363
A Tholian attack on New Lhasa results in planet-wide pollution and drives the population into exile, risking the Tholian accords.

2369
Tholians ask the UFP for formal diplomatic relations

2272
Detailed treaty with the Tholians grants New Lhasa sector and a corridor to the UFP, with certain conditions.

2273
Return of the exiles, emergence of Psi abilities and mental illness in the population (New Lhasa Syndrome) and the breakout of the Dominion war brings a new wave of refugees.

2274
Discover of an alien subspace tunnel which shifts position from the Romulan Neutral Zone to the Gamma Quadrant.