Thursday is Patriots Day.
Patriots Day honors the start of the Revolutionary War
"Lexington."
"Concord."
"Shot heard round the world."
April 19, 1775
That’s a good possibility.
April 19 is the calander date.
The holiday is generally on the 3rd Monday in April.
https://www.officeholidays.com/countries/usa/usa-patriots-day.php
I am not disagreeing with you. Just presenting additional information.