| January 2018 | ||
| 16/01/18 | The alliance memento7 was founded. | |
Founding members::  memento7. | ||
 The alliance reaches a population more than 100. | ||
| March 2018 | ||
| 28/03/18 | The alliance reaches a population more than 1,000. | |
| June 2018 | ||
| 14/06/18 | Deletion of:memento7. | |
| The alliance memento7 was canceled. | ||