And here are some interesting comments from that page:
Charles River Software was incorporated by Leonid 10/31/97.
I joined on 2/2/98.
First round of venture capital was in 1998.
First lines of code were written in 1998.
First office (not counting Leonid's living room) was in Wellesley, MA, upstairs from Dominoes Pizza. It used to smell quite toasty in the afternoons.
Regarding Reflex, we did do an evaluation to determine if we should base Revit on Reflex and the conclusion was no. None of Revit was based on Reflex (though they both were intended to solve the problem of making a practical 3D architectural modeler). By the way, contrary to what someone said earlier in this thread, Reflex does not have a parametric change engine (one of the reasons we rejected it as a starting point for Revit).