Flag Day is recognized June 14th each year. Our flag was born in the Maritime Committee of the Continental Congress on June 14th, 1777 with the adoption of the Flag Resolution: "Resolved: that the flag of the United States be made of thirteen stripes, alternate red and white; that the union be thirteen stars, white in a blue field, representing a new Constellation." Flag Day was established by President Woodrow Wilson in 1916 by proclamation, then in 1949 by an act of Congress.
mass
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.
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Taking a guess that it's Juneteenth?
Flag day on June 14.
In the United States, Flag Day is celebrated on June 14th of each year and celebrates the adoption of the American flag, which took place June 14th, 1777. June 14th was proclaimed a Holiday by Woodrow Wilson in 1949 although it is not yet recognized as a Federal Holiday.
Memorial Day
Yes, it is not a US Postal Holiday.
Presidents' Day is a federal holiday that celebrates the birthdays of George Washington and Abraham Lincoln.
Muslims celebrate it
Easter
Memorial day