| July 2020 |
| 19/07/20 | The alliance Česko was founded. |
| Founding members::  Mira007 and Abaffykr. |
|  The alliance reaches a population more than 100. |
|
| 20/07/20 | Joining of:Hubys. |
|
| 27/07/20 | Joining of: soundpool. |
|
| 29/07/20 | Deletion of:Hubys. |
| August 2020 |
|
| 01/08/20 | Joining of:Zalesak and Smurf. |
| The alliance reaches a population more than 1,000. |
|
| 05/08/20 | Joining of:pavuk. |
|
| 15/08/20 | Deletion of:Mira007. |
|
| 19/08/20 | Joining of:MesTra. |
|
| 20/08/20 | Joining of:Lupo. |
|
| 21/08/20 | Deletion of:Abaffykr. |
|
| 24/08/20 | Leaving of:Smurf. |
|
| 25/08/20 | Leaving of:soundpool. |
| September 2020 |
|
| 13/09/20 | Deletion of:pavuk. |
|
| 15/09/20 | Deletion of:Zalesak. |
| October 2020 |
|
| 12/10/20 | Deletion of:MesTra. |
| December 2020 |
|
| 02/12/20 | Deletion of:Lupo. |
| The alliance Česko was canceled. |