| May 2013 | ||
| 04/05/13 | The alliance -WTF?- (today: CZ-SK) was founded. | |
Founding members::  esetes, kubo and k4por. | ||
 The alliance reaches a population more than 100. | ||
| 05/05/13 | Joining of:bau. | |
| Leaving of:bau. | ||
| 09/05/13 | Leaving of:esetes. | |
| 13/05/13 | The alliance is now known as CZ-SK. | |
| 21/05/13 | The alliance reaches a population more than 1,000. | |
| 29/05/13 | Joining of:Asator and Wawa. | |
| June 2013 | ||
| 02/06/13 | Deletion of:Wawa. | |
| July 2013 | ||
| 04/07/13 | Deletion of:kubo. | |
| 09/07/13 | Deletion of:Asator. | |