Complex sentence: The project was started in 1999 by Tomasz Grysztar, aka "Privalov" (at that time, an undergraduate student of mathematics from Poland) and its first public release was announced on March 15,2000.
Split into simpler sentences: The project was started in 1999 by Tomasz Grysztar, aka "Privalov" (at that time, an undergraduate student of mathematics from Poland). The first public release was announced on March 15,2000.