Cornwall Holiday celebrates St. Piran Day. This is a made up holiday for Cornwall. Reasons why he celebrates this holiday are unknown. That is the holiday he celebrates.
Muslims celebrate it
Easter
Memorial day
Celebrates African traditions
The holiday of Shavuot celebrates the giving of the Torah and the laws contain therein.
Carnival.
Juneteeth
the fourth of july
1st August.
Thanksgiving
Celebrates African Traditions -Apex