| August 2021 | ||
| 15/08/21 | The alliance ČS was founded. | |
Founding members::  Salvia and Alerm. | ||
 The alliance reaches a population more than 100. | ||
| 16/08/21 | The alliance reaches a population more than 1,000. | |
| 17/08/21 | Joining of:NeMy. | |
| 19/08/21 | Joining of: magnum. | |
| 21/08/21 | Joining of:H6N3. | |
| 22/08/21 | Deletion of:magnum. | |
| 25/08/21 | Deletion of:Alerm. | |
| 26/08/21 | Leaving of:Salvia and H6N3. | |
| September 2021 | ||
| 06/09/21 | The alliance ČS was canceled. | |