| January 2018 | ||
| 16/01/18 | The alliance Prev4 was founded. | |
Founding members::  Prev4. | ||
 The alliance reaches a population more than 100. | ||
| March 2018 | ||
| 29/03/18 | The alliance reaches a population more than 1,000. | |
| June 2018 | ||
| 11/06/18 | Deletion of:Prev4. | |
| The alliance Prev4 was canceled. | ||