| March 2011 | ||
| 16/03/11 | The alliance KoS (today: OS) was founded. | |
Founding members::  Ice Ice Baby, Ozverin, mischievous, tom1408 and pipekl. | ||
| Leaving of:mischievous and tom1408. | ||
 The alliance reaches a population more than 10,000. | ||
| 17/03/11 | The alliance is now known as OS. | |
| Joining of:simsim. | ||
| Leaving of:simsim. | ||
| 18/03/11 | Joining of:popey_. | |
| 20/03/11 | The alliance OS was canceled. | |