| April 2020 |
| 15/04/20 | The alliance WR (today: UB) was founded. |
| Founding members::  Guderian. |
|  The alliance reaches a population more than 100. |
|
| 19/04/20 | Joining of: Augustina. |
| The alliance reaches a population more than 1,000. |
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| 22/04/20 | Joining of:REINERTER, Neovart, Vicdominus, TobiP1989, PMS and  Divus. |
| The alliance reaches a population more than 5,000. |
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| 23/04/20 | Joining of:Andropa, xilop030, NICHTSNUTZ, bulldogge, Chupa Chups, Bashingteam, Cellat, Krieger, Josie01 and Söz. |
| The alliance reaches a population more than 10,000. |
|
| 24/04/20 | Joining of:mwatermen, Fridrich, Ulrich, Hartenholm and Lion. |
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| 25/04/20 | Joining of:dreamer50 and Nati Li. |
| Leaving of:Fridrich. |
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| 27/04/20 | Joining of:FF2 and crisu1969. |
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| 28/04/20 | Joining of:Toitone. |
| Leaving of:NICHTSNUTZ. |
| Deletion of:TobiP1989 and Hartenholm. |
| May 2020 |
|
| 01/05/20 | Joining of:haiko. |
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| 02/05/20 | Leaving of:Augustina PMS Andropa bulldogge Cellat Krieger Josie01 Söz FF2 crisu1969 Toitone and haiko. |
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| 03/05/20 | Leaving of:Guderian Neovart Vicdominus Chupa Chups Bashingteam mwatermen and dreamer50. |
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| 04/05/20 | The alliance is now known as UB. |
| Leaving of:xilop030. |
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| 05/05/20 | Deletion of:Nati Li. |
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| 08/05/20 | Leaving of:Lion. |
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| 12/05/20 | Deletion of:Divus. |
| July 2020 |
|
| 14/07/20 | Deletion of:Ulrich. |