| April 2010 | ||
| 04-09-10 | The alliance RKT (today: PER) was founded. | |
Founding members::  gkballa96 and Cyberman. | ||
 The alliance reaches a population more than 100. | ||
| 04-10-10 | Joining of:killahcheese, qwertyman290, candle1979, Bilbo and Im a man. | |
| Leaving of:killahcheese and Im a man. | ||
| 04-11-10 | Joining of:Luciile and POETA68. | |
| 04-13-10 | Leaving of:Luciile. | |
| 04-14-10 | Leaving of:candle1979. | |
| May 2010 | ||
| 05-02-10 | Leaving of:gkballa96. | |
| 05-03-10 | The alliance is now known as PER. | |
| 05-05-10 | The alliance PER was canceled. | |