| September 2017 | ||
| 09-12-17 | The alliance O~O (today: OvO) was founded. | |
Founding members::  Aennedry. | ||
 The alliance reaches a population more than 100. | ||
| 09-15-17 | The alliance is now known as OvO. | |
| October 2017 | ||
| 10-15-17 | The alliance reaches a population more than 1,000. | |
| December 2017 | ||
| 12-18-17 | The alliance reaches a population more than 5,000. | |
| February 2018 | ||
| 02-22-18 | The alliance reaches a population more than 10,000. | |