| September 2015 | ||
| 06/09/15 | The alliance OB was founded. | |
Founding members::  Sampa, BornOne, Abety and mxhalla. | ||
 The alliance reaches a population more than 100. | ||
| 09/09/15 | Joining of:alfaeya. | |
| Leaving of:alfaeya. | ||
| 13/09/15 | Joining of:Harrebarre, Lodis, BaseLine, Sasse.esm, fox, TheLieChe, laiks08 and Annddyy. | |
| The alliance reaches a population more than 1,000. | ||
| 14/09/15 | Joining of:Ironius. | |
| 15/09/15 | Joining of:Superolle11. | |
| 16/09/15 | Joining of:Danne. | |
| Leaving of:Annddyy and Danne. | ||
| 17/09/15 | Joining of:wasq. | |
| Leaving of:Ironius and wasq. | ||
| 18/09/15 | Leaving of:Sampa. | |
| 19/09/15 | Deletion of:Lodis. | |
| 20/09/15 | Deletion of:BaseLine. | |
| 21/09/15 | Deletion of:Abety. | |
| 28/09/15 | Joining of:Flauge. | |
| 30/09/15 | Leaving of:Flauge. | |
| October 2015 | ||
| 03/10/15 | Leaving of:fox. | |
| 09/10/15 | Leaving of:laiks08. | |
| Deletion of:mxhalla. | ||
| 10/10/15 | Leaving of:Harrebarre. | |
| 13/10/15 | Leaving of:Sasse.esm and Superolle11. | |
| November 2015 | ||
| 17/11/15 | Deletion of:TheLieChe. | |