| August 2020 |
| 31/08/20 | The alliance UMV (today: BUM) was founded. |
| Founding members::  empty-handed, Science_Geek, JohnDevelops, HarryPlopper, Perapfc, Breeze, graygrim, HiFarm, Pnkflffybnny, sata20079, d00b, Quigonjinn, Rodawallo, Caspita, Krok, Myghal, user117, Intech, fabregasvlad, KojoT, Joebob, jigsaw, Horslips, Lolbroekje, Arun Kandarin, 5XL, The Drinker, The Rope, Alignpro, Amundies, GreenThumb, Tamara, AvEnTaD0R_225, NONAME, Escape, rnrn, pulpus, supergwam, Clownpiece, Shizen and Viking. |
| Leaving of:Lolbroekje. |
|  The alliance reaches a population more than 10,000. |
| September 2020 |
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| 01/09/20 | Joining of:Ratus, Rockstar1090, Ragnorok, RhiRhi, Failsafe and Nova. |
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| 02/09/20 | Deletion of:AvEnTaD0R_225. |
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| 04/09/20 | Joining of:Asterix55. |
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| 05/09/20 | Joining of:Stoi. |
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| 06/09/20 | Joining of:Commander. |
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| 09/09/20 | Leaving of:Ragnorok. |
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| 10/09/20 | Joining of:TheDruid. |
| Leaving of:KojoT Shizen Viking and TheDruid. |
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| 11/09/20 | Joining of:ferrari. |
| Leaving of:Tamara Escape and Asterix55. |
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| 12/09/20 | The alliance is now known as BUM. |
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| 13/09/20 | Deletion of:JohnDevelops. |
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| 15/09/20 | Leaving of:Intech. |
| The alliance reaches a population more than 50,000. |
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| 17/09/20 | Leaving of:Amundies. |
| Deletion of:Pnkflffybnny. |
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| 18/09/20 | Joining of:BlackDeath and the sacados. |
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| 20/09/20 | Leaving of:RhiRhi. |
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| 21/09/20 | Joining of:Amundies. |
|  The alliance have their first conquest. |
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| 23/09/20 | Deletion of:Clownpiece. |
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| 24/09/20 | Joining of:lolita, KojoT and Tamara. |
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| 29/09/20 | Joining of:TheDruid. |
| Leaving of:Krok. |
| October 2020 |
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| 03/10/20 | The alliance has done over 5 conquests. |
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| 05/10/20 | The alliance reaches a population more than 100,000. |
|
| 07/10/20 | Leaving of:Alignpro. |
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| 11/10/20 | Joining of:Sumit. |
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| 15/10/20 | Deletion of:GreenThumb. |
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| 18/10/20 | Joining of:redmoon. |
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| 23/10/20 | Deletion of:Perapfc. |
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| 24/10/20 | Leaving of:Failsafe. |
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| 25/10/20 | Leaving of:NONAME. |
| Deletion of:rnrn. |
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| 29/10/20 | Leaving of:fabregasvlad and Amundies. |
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| 30/10/20 | Leaving of:Tamara. |
| November 2020 |
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| 01/11/20 | The alliance has done over 10 conquests. |
|
| 02/11/20 | Leaving of:Breeze and KojoT. |
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| 03/11/20 | Leaving of:ferrari. |
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| 20/11/20 | Leaving of:The Rope. |
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| 22/11/20 | Deletion of:Nova. |
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| 24/11/20 | Leaving of:Joebob and pulpus. |
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| 26/11/20 | The alliance has done over 20 conquests. |
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| 27/11/20 | Leaving of:Ratus. |
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| 30/11/20 | Joining of:The Rope. |
| December 2020 |
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| 06/12/20 | Deletion of:Arun Kandarin. |
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| 12/12/20 | Deletion of:BlackDeath. |
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| 30/12/20 | Leaving of:5XL. |
| January 2021 |
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| 01/01/21 | Leaving of:Science_Geek. |
| Deletion of:user117 supergwam and The Rope. |
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| 04/01/21 | Joining of:pulpus. |
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| 05/01/21 | Leaving of:HiFarm. |
| Deletion of:Horslips. |
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| 08/01/21 | Deletion of:jigsaw and Commander. |
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| 09/01/21 | Leaving of:lolita. |
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| 10/01/21 | Leaving of:HarryPlopper. |
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| 11/01/21 | Deletion of:d00b. |
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| 12/01/21 | Deletion of:the sacados. |
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| 14/01/21 | Joining of:Joebob. |
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| 24/01/21 | Deletion of:Sumit. |
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| 31/01/21 | Leaving of:Quigonjinn. |
| Deletion of:Caspita. |
| February 2021 |
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| 03/02/21 | Deletion of:graygrim and Stoi. |
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| 07/02/21 | Leaving of:pulpus. |
| Deletion of:Rockstar1090. |
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| 09/02/21 | Deletion of:The Drinker. |
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| 10/02/21 | Deletion of:sata20079. |
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| 12/02/21 | Deletion of:Rodawallo. |
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| 13/02/21 | Leaving of:redmoon. |
| March 2021 |
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| 11/03/21 | Leaving of:Myghal. |
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| 14/03/21 | Joining of:Myghal. |