“Easter is gone off my Mac (HS v.10.13.2) calendar and my iPhone 7 calendar (iOS v.11.2.5). “Indigenous People’s Day” is there but Columbus Day is also there.”
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Sounds like a buggy-type glitch to me. Maybe having to do with two “holidays” on April 1st caused a programming error impacting some users and not others.
It’s such an issue with the “latest update” and the “war on Christians” that it was a problem back in **2013**.
https://discussions.apple.com/message/19979476#19979476
If you actually *call* or *chat* Apple, all they will do is walk you through the US Holidays reactivation and resubscribe. This isn’t new.