| September 2012 |
| 20/09/12 | The alliance LPV 4 (today: UNION 4) was founded. |
| Founding members::  LPV PAUSO, ComoDin, La Pirata, LPV-At Vrain, juan pe55, arma, LPV Cerberoth, LPV_BRUJO_85, Baneling, MaRi00O, LPV PiztolerO, LPV-FENIXTOR, LPV-Team GaTiTo, SilverWolf, LPV - Fonte, LPV fefe23, LPV T&A and LPV LoK_la. |
|  The alliance reaches a population more than 1,000. |
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| 21/09/12 | Leaving of:LPV-FENIXTOR. |
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| 22/09/12 | Joining of:Huracan, LPV TIAGO and wini phuulpv. |
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| 23/09/12 | Joining of:LPV migues, LPV Cohiva, LPV Atila1 and monchito. |
| Leaving of:LPV T&A. |
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| 24/09/12 | The alliance is now known as UNION 4. |
| Joining of:LPV Tagüe. |
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| 25/09/12 | Joining of:LPV-NK12 and vorcks. |
| The alliance reaches a population more than 5,000. |
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| 27/09/12 | Leaving of:LPV fefe23. |
| October 2012 |
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| 01/10/12 | Joining of:LPV-choketuma and jujuy. |
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| 02/10/12 | The alliance reaches a population more than 10,000. |
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| 05/10/12 | Joining of:LPV ILUMINATIS. |
| Leaving of:LPV PAUSO ComoDin LPV-At Vrain arma LPV Cerberoth LPV_BRUJO_85 Baneling MaRi00O LPV PiztolerO LPV-Team GaTiTo SilverWolf LPV - Fonte LPV LoK_la Huracan LPV TIAGO wini phuulpv LPV migues LPV Cohiva LPV Atila1 monchito LPV Tagüe LPV-NK12 vorcks LPV-choketuma jujuy and LPV ILUMINATIS. |
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| 06/10/12 | The alliance UNION 4 was canceled. |