|Observed by||Principality of Posaf|
|Significance||Anniversary of the Declararing independence in the Prinicpality of Posaf|
|Celebrations||The granting of honours by the Monarch, parades, speeches, and the coinciding of important events and declarations|
Founders Day is the most significant holiday in Posaf, celebrated on 2 January of every year. The holiday celebrates the anniversary of the declaring independence of Posaf from the United States on 2 January 2018.