The first Rikti War occurred between 23 May 2002 to 27 November 2002. The second war began after I was taken to this place (27 February 2007), but it likely began in July of 2007. You would need to ask Marcus Cole for the specific date.

The wars were initiated by hostile extra-dimensional forces that invaded with only a few hours advance warning.

Also, I would find it likely that my home universe diverged from most others at least on 4 July 1930, or possibly at several other points between one thousand and two thousand years ago. No other individuals I have spoken with here share details of history that show that a certain important artifact of unknown origin even existed there.