April 18·Every year

National Pet Owners Day

A low-key celebration of the 87 million American households that share a home with a pet — dogs, cats, parrots, and the occasional axolotl. Started in 2007 by the National Day Calendar; widely observed but not a federal holiday.

Category: Silly
Observed in: United StatesCanada

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Notable · 2023

Fox News agreed to pay Dominion Voting Systems a $787 million settlement over defamation claims related to the 2020 U.S. presidential election.

2026Seven people are killed and fourteen others are injured in a mass shooting in Kyiv, Ukraine
2019A redacted version of the Mueller report is released to the United States Congress and the public.
2018King Mswati III of Swaziland announces that his country's name will change to Eswatini.