| November 2017 | ||
| 16/11/17 | The alliance seis20 was founded. | |
Founding members::  seis20. | ||
 The alliance reaches a population more than 100. | ||
| November 2017 | ||
| 16/11/17 | The alliance seis20 was founded. | |
| Founding members:: seis20. | ||
| The alliance reaches a population more than 100. | ||