| March 2008 | ||
| 04/03/08 | The alliance *CX* (today: Arena) was founded. | |
Founding members::  flutschtopf and Lido. | ||
 The alliance reaches a population more than 100. | ||
| 05/03/08 | The alliance is now known as Arena. | |
| Joining of:Hunter. | ||
| 11/03/08 | Joining of:D-Master. | |
| April 2008 | ||
| 02/04/08 | The alliance reaches a population more than 1,000. | |
| 04/04/08 | Leaving of:D-Master. | |