| June 2019 |
| 20/06/19 | The alliance red (today: CEO) was founded. |
| Founding members::  csol2019. |
|  The alliance reaches a population more than 100. |
|
| 25/06/19 | The alliance is now known as CEO. |
| Joining of:cz9a. |
|
| 27/06/19 | The alliance reaches a population more than 1,000. |
|
| 29/06/19 | Joining of: Kestyss,  Shtorm, kambingitam, Awen71 and GGhadid. |
| July 2019 |
|
| 04/07/19 | The alliance reaches a population more than 5,000. |
|
| 14/07/19 | The alliance reaches a population more than 10,000. |
|
| 24/07/19 | Joining of:shah. |
|
| 26/07/19 | Joining of:Bot. |
| August 2019 |
|
| 04/08/19 | Deletion of:shah. |
|
| 28/08/19 | The alliance reaches a population more than 50,000. |
| September 2019 |
|
| 28/09/19 | Leaving of:cz9a. |