| February 2020 |
| 10/02/20 | The alliance BT2 (today: BT2-OS) was founded. |
| Founding members::  Crazy Twins, m. blaise, Paladin and Hristo Stoickov. |
|  The alliance reaches a population more than 100. |
|
| 11/02/20 | Joining of:avramns, stalker, L___, stoposto, Python, mustangzg, Kriva Kuka, Surla, Dzudass and 5ko. |
| The alliance reaches a population more than 1,000. |
|
| 12/02/20 | Joining of:mistik, sokrat and Один79. |
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| 13/02/20 | Joining of:TiNe, Sony, upsurge, breaker, Elefantenrüssel, JaBaDaBaDu, Leda, Kremšnita, xman, Liliwen, sarna, divcek, cake, Pastafarian and kanseidorifto. |
| The alliance reaches a population more than 5,000. |
|
| 14/02/20 | Joining of:rage, mania, pisarna, rex1, goja, subversion, ire1, miloš, loch and Xtr. |
| Leaving of:sarna pisarna ire1 miloš and loch. |
| The alliance reaches a population more than 10,000. |
|
| 15/02/20 | Leaving of:breaker. |
|
| 16/02/20 | Joining of:qwer, Jole and Cole. |
| Leaving of:upsurge JaBaDaBaDu rage mania rex1 subversion and Xtr. |
|
| 17/02/20 | Joining of:Black_Knight, ela, Škorpija-Tigar, KAUSINATOR and Saphira. |
| Leaving of:Kriva Kuka and Pastafarian. |
|
| 18/02/20 | Joining of:laxRe. |
| Leaving of:stoposto mistik Jole and Cole. |
|
| 19/02/20 | The alliance is now known as BT2-OS. |
| Joining of:LEO, Rim!, Pinko, Момчил, Ttcob, treexxx, moira, SHV and Panza. |
| Leaving of:xman. |
|
| 20/02/20 | Joining of:Drakaris, Бау-Бау, Samsung, gold, Marinov335D, Kriva Kuka, RGIvoD, The first and кашкавал. |
| Leaving of:Black_Knight and Samsung. |
|
| 22/02/20 | Joining of:Black_Knight and -300-. |
| Leaving of:Kremšnita. |
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| 23/02/20 | Leaving of:kanseidorifto. |
| Deletion of:Kriva Kuka. |
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| 24/02/20 | Joining of:ma3x and MadHounds. |
| The alliance reaches a population more than 50,000. |
|
| 25/02/20 | Leaving of:qwer. |
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| 26/02/20 | Joining of:Ivanov. |
| Leaving of:m. blaise Paladin and mustangzg. |
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| 27/02/20 | Joining of:King Ragnar93 and kirijavd. |
| Deletion of:gold. |
|
| 28/02/20 | Leaving of:moira. |
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| 29/02/20 | Joining of:FusioN. |
| March 2020 |
|
| 01/03/20 | Joining of:Uskozaanje, OG Kush, damirmutap, RCP1389 and 3kl. |
|
| 02/03/20 | Joining of:Bokynjo. |
| Leaving of:Škorpija-Tigar. |
|  The alliance have their first conquest. |
|
| 03/03/20 | Joining of:zeka, Strahinja08 and The Law. |
| The alliance reaches a population more than 100,000. |
|
| 04/03/20 | Joining of:Chroonerr and zvezdata. |
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| 05/03/20 | Joining of:ttttt, pasha, holi and meli. |
| Leaving of:holi. |
|
| 06/03/20 | Joining of:Frontier. |
|
| 07/03/20 | Deletion of:cake. |
| The alliance has done over 5 conquests. |
|
| 08/03/20 | Joining of:TheRig. |
|
| 09/03/20 | Leaving of:avramns. |
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| 10/03/20 | Joining of:moj dual i ja. |
| Leaving of:laxRe. |
|
| 11/03/20 | Leaving of:kirijavd. |
|
| 12/03/20 | Joining of:Don Ros. |
| Leaving of:Strahinja08. |
| The alliance has done over 10 conquests. |
|
| 13/03/20 | Joining of:frenkyfisher and ApeT. |
| Leaving of:moj dual i ja. |
| Deletion of:Don Ros. |
|
| 14/03/20 | Joining of:bravo. |
| Leaving of:Python and Один79. |
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| 15/03/20 | Joining of:Strahinja08, SelyB and gameover. |
| Leaving of:-300- and gameover. |
|
| 16/03/20 | Joining of:Python. |
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| 17/03/20 | Joining of:4qu4. |
| The alliance has done over 20 conquests. |
|
| 19/03/20 | Leaving of:sokrat and ApeT. |
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| 20/03/20 | Joining of:genije. |
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| 21/03/20 | Joining of:S.Ferrari. |
| Leaving of:Panza and 4qu4. |
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| 24/03/20 | Leaving of:Crazy Twins Dzudass KAUSINATOR Saphira Момчил The first damirmutap Bokynjo zeka The Law and genije. |
|
| 25/03/20 | Deletion of:Ttcob. |
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| 26/03/20 | Joining of:Ramsay. |
| Leaving of:Liliwen кашкавал Black_Knight ma3x and SelyB. |
|
| 27/03/20 | Leaving of:RCP1389. |
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| 28/03/20 | Leaving of:stalker 5ko TiNe Sony Leda goja treexxx FusioN 3kl ttttt Frontier TheRig frenkyfisher and Python. |
| Deletion of:Marinov335D. |
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| 29/03/20 | Joining of:TheNutrition, Magnezji, ProteiniSi and Polleo. |
| Leaving of:ela and Uskozaanje. |
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| 30/03/20 | Joining of:Crazy Twin .!.. |
| Leaving of:MadHounds and Chroonerr. |
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| 31/03/20 | Leaving of:Hristo Stoickov. |
| April 2020 |
|
| 02/04/20 | Joining of:PTT. |
|
| 04/04/20 | Leaving of:Crazy Twin .!.. |
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| 06/04/20 | Leaving of:TheNutrition Magnezji ProteiniSi and Polleo. |
|
| 09/04/20 | Leaving of:zvezdata. |
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| 12/04/20 | Leaving of:divcek OG Kush and PTT. |
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| 13/04/20 | Leaving of:L___ Elefantenrüssel King Ragnar93 and Strahinja08. |
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| 15/04/20 | Leaving of:Surla pasha meli S.Ferrari and Ramsay. |
|
| 22/04/20 | Deletion of:Rim!. |