| September 2020 |
| 01/09/20 | The alliance Federal (today: 404 Err) was founded. |
| Founding members::  越南毒玫瑰 and Burr. |
|  The alliance reaches a population more than 100. |
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| 02/09/20 | Joining of:Loch, fågel, PooPooMan, Rosmos, ojs, Argos and TOERD. |
| Leaving of:Argos. |
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| 03/09/20 | Joining of:Faro, Astrid, Khroll, zach, SameXx, SOMBRA and IDDQD. |
| Leaving of:Astrid. |
| The alliance reaches a population more than 1,000. |
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| 04/09/20 | Joining of:Merlin, Prometheus, Ahmed, Melanushka, Typo, Roel, Sicilia, gibsone and dloscos. |
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| 05/09/20 | Joining of:Loco7aco and DONT!. |
| The alliance reaches a population more than 5,000. |
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| 06/09/20 | Joining of:Rasmus, IvIg, EldanDrake and Dalibor. |
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| 08/09/20 | Joining of:Doetnix, ApacheTheKiller, BoeG, city, stan, Celavi, jobflash, TataPuiu, DatabaseWerner, invisibleman, RizzyRD and Mr.Löwe. |
| The alliance reaches a population more than 10,000. |
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| 09/09/20 | Joining of:redpower, Fresh, LordKaczka and pongee. |
| Leaving of:Dalibor. |
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| 10/09/20 | Joining of:MissDeb. |
| Leaving of:TataPuiu. |
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| 11/09/20 | Joining of:Oric. |
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| 12/09/20 | Joining of:punsch, Ladon83 and Lord Lima. |
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| 13/09/20 | Joining of:Last_Hun and Tjersland. |
| Leaving of:LordKaczka. |
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| 14/09/20 | Joining of:Ari and Dok. |
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| 15/09/20 | Joining of:hmmm. |
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| 16/09/20 | Joining of:LXPD. |
| Leaving of:Roel and MissDeb. |
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| 17/09/20 | Leaving of:RizzyRD. |
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| 18/09/20 | Deletion of:Khroll. |
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| 19/09/20 | Joining of:nazaghul and Setimus. |
| Leaving of:EldanDrake. |
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| 20/09/20 | Leaving of:DatabaseWerner. |
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| 21/09/20 | Joining of:Astrid. |
| Leaving of:Mr.Löwe. |
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| 22/09/20 | Joining of:exlife37. |
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| 23/09/20 | Joining of:Hejtred. |
| Deletion of:IDDQD and pongee. |
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| 24/09/20 | Leaving of:Fresh. |
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| 25/09/20 | Joining of:SerHess. |
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| 26/09/20 |  The alliance have their first conquest. |
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| 28/09/20 | Leaving of:Dok. |
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| 29/09/20 | Joining of:Veznar. |
| October 2020 |
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| 01/10/20 | Leaving of:Last_Hun. |
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| 02/10/20 | The alliance reaches a population more than 50,000. |
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| 03/10/20 | Joining of:Godzilla. |
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| 04/10/20 | Joining of:LORDOX II. |
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| 05/10/20 | Leaving of:Loch fågel PooPooMan Rosmos ojs Faro Prometheus Loco7aco Doetnix and invisibleman. |
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| 06/10/20 | Leaving of:gibsone and Godzilla. |
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| 07/10/20 | Deletion of:BoeG and Setimus. |
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| 08/10/20 | Joining of:VidiVici. |
| Deletion of:Merlin. |
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| 09/10/20 | Joining of:sssrsd. |
| Leaving of:jobflash. |
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| 10/10/20 | Deletion of:stan. |
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| 12/10/20 | Leaving of:越南毒玫瑰. |
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| 13/10/20 | Joining of:DragonSCM, Puarro, Ares and Leeus. |
| Leaving of:hmmm. |
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| 14/10/20 | Joining of:sunforce. |
| Leaving of:SerHess. |
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| 16/10/20 | Leaving of:Veznar. |
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| 18/10/20 | Leaving of:zach Ahmed and LXPD. |
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| 19/10/20 | Leaving of:city and Celavi. |
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| 20/10/20 | Leaving of:LORDOX II. |
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| 21/10/20 | Joining of:UTKARSH. |
| Leaving of:SOMBRA and ApacheTheKiller. |
| Deletion of:sunforce. |
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| 22/10/20 | Leaving of:dloscos and Tjersland. |
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| 24/10/20 | Deletion of:Puarro. |
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| 25/10/20 | Leaving of:DragonSCM. |
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| 27/10/20 | The alliance has done over 5 conquests. |
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| 28/10/20 | Leaving of:TOERD. |
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| 29/10/20 | Leaving of:Oric. |
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| 30/10/20 | Leaving of:nazaghul. |
| November 2020 |
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| 01/11/20 | Leaving of:Ares and UTKARSH. |
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| 03/11/20 | Leaving of:Lord Lima. |
| Deletion of:exlife37. |
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| 06/11/20 | Joining of:Ares. |
| Leaving of:Sicilia. |
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| 07/11/20 | Joining of:Lord Lima, gibsone, city, Loco7aco and nazaghul. |
| Leaving of:Burr and Leeus. |
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| 08/11/20 | The alliance is now known as 404 Err. |
| Joining of:TOERD. |
| Deletion of:SameXx. |
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| 09/11/20 | Joining of:LXPD and ojs. |
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| 10/11/20 | Joining of:Loch and hmmm. |
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| 11/11/20 | Leaving of:ojs. |
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| 15/11/20 | Joining of:Konek. |
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| 17/11/20 | Joining of: Hrustovo. |
| Deletion of:city. |
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| 18/11/20 | Leaving of:Hejtred. |
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| 19/11/20 | Leaving of:TOERD and Konek. |
| The alliance has done over 10 conquests. |
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| 20/11/20 | Leaving of:Ares. |
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| 23/11/20 | Leaving of:DONT! and Ladon83. |
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| 24/11/20 | Leaving of:IvIg gibsone nazaghul and LXPD. |
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| 25/11/20 | Leaving of:Rasmus and Loco7aco. |
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| 27/11/20 | Leaving of:Astrid. |
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| 29/11/20 | Leaving of:Melanushka. |
| December 2020 |
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| 06/12/20 | Leaving of:Hrustovo. |
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| 15/12/20 | Leaving of:hmmm. |
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| 20/12/20 | Leaving of:punsch. |
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| 29/12/20 | Leaving of:redpower and Ari. |
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| 30/12/20 | Leaving of:VidiVici Lord Lima and Loch. |
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| 31/12/20 | The alliance 404 Err was canceled. |