[iMore Question]

how do I stop American holidays appearing on my calendar. In settings I do not have holidays showing under calendars

[phreddyl]

apple adds this- you can get it to not show by going into the calendar app- clicking calendars and then unchecking the us calendars

[mikeo007]

If you don't want to see the holidays, do as suggested above.
If you want to see your LOCAL holidays instead of US holidays, change your Region (Settings -> General -> Language and Region) to something other than United States.