There are several key events that can be considered the beginning of the Counter-Strike eSports movement:

1. CPL Winter 2000: The tournament, which took place in December 2000, is considered one of the first major Counter-Strike tournaments. It brought together the best teams of the time, including Team3D, Frag eXecutors and The Professionals.

2. CPL Summer 2001: This tournament has become even more significant as Counter-Strike has already begun to gain popularity in Europe. It was attended by such legendary teams as NiP and mousesports.

3. Cyberathlete Professional League (CPL): The CPL organization played a key role in the development of Counter-Strike as an eSports discipline. She held tournaments with prize funds and contributed to the popularization of the game.