| June 2015 | ||
| 06/06/15 | The alliance [UM-IMP] was founded. | |
Founding members::  FR4NK0, T0M4T3 and Ezaah. | ||
 The alliance reaches a population more than 100. | ||
| 08/06/15 | Joining of:escrawn. | |
| 09/06/15 | Joining of:fenavidades and IsaacIV. | |
| 12/06/15 | Leaving of:escrawn. | |
| The alliance reaches a population more than 1,000. | ||
| 13/06/15 | Joining of:XxbettoxX. | |
| 15/06/15 | Joining of:andres2590. | |
| 16/06/15 | Joining of:RavMatrix. | |
| Deletion of:FR4NK0 and fenavidades. | ||
| 17/06/15 | Joining of:keev1. | |
| 18/06/15 | Joining of:KuKluxKlan. | |
| 20/06/15 | Leaving of:KuKluxKlan. | |
| 24/06/15 | Joining of:fenavidades. | |
| Leaving of:XxbettoxX. | ||
| 25/06/15 | Leaving of:Ezaah. | |
| July 2015 | ||
| 01/07/15 | Joining of:Desasukamaju1 and feesthoed. | |
| The alliance reaches a population more than 5,000. | ||
| 02/07/15 | Leaving of:andres2590. | |
| 06/07/15 | Joining of:PERRISTOTELES. | |
| 07/07/15 | Joining of:ralof. | |
| 09/07/15 | Joining of:kaiserlynx. | |
| 15/07/15 | Joining of:Nar8. | |
| 16/07/15 | Joining of:fiorina. | |
| 19/07/15 | The alliance reaches a population more than 10,000. | |
| 25/07/15 | Joining of:ELLOCO. | |
| 30/07/15 | Leaving of:Desasukamaju1. | |
| August 2015 | ||
| 02/08/15 | Leaving of:Nar8. | |
| 05/08/15 | Deletion of:ELLOCO. | |
| 09/08/15 | Joining of:Tomipanque and muratonder. | |
| 14/08/15 | Joining of:SevenSky and alanovich2010. | |
| 15/08/15 | Joining of:Leviathan3. | |
| Leaving of:Leviathan3. | ||
| 17/08/15 | Joining of:Mr. Flash and aitor_torti. | |
| 20/08/15 | Joining of:mbz123. | |
| 22/08/15 |  The alliance have their first conquest. | |