When citizens see that there is a group and a desire to do so, they do so in the media to prepare masks or pastoralists. In the same year, more than one people may express their intention to prepare pastors or masks. They then tend to try to reach an agreement and if they fail to do so, it is possible that two peoples will arrange their masks in the same year. In the case of pastoralists, it is usually not so common that two pastoralists will be made in one year, but this is sometimes the case.
Here you have the list of people and dates of the masks and shepherds of the coming years:
Masked
Pastoralists