| April 2013 | ||
| 03/04/13 | The alliance ITS (today: RO-HT) was founded. | |
Founding members::  Kent. | ||
 The alliance reaches a population more than 100. | ||
| 04/04/13 | The alliance is now known as RO-HT. | |
| 17/04/13 | Joining of:puk4. | |
| 24/04/13 | The alliance reaches a population more than 1,000. | |
| 27/04/13 | Joining of:raduo. | |
| May 2013 | ||
| 28/05/13 | Leaving of:puk4. | |
| July 2013 | ||
| 09/07/13 | The alliance reaches a population more than 5,000. | |