September 7th is a day for one Official holiday in the USA in the form of Labor Day, and one Official Holiday in Brazil (Brazil Independence Day), and several unofficial holidays being recognized as follows:
(1)Neither Snow Nor Rain Day
If you are thinking this day has anything to do with weather, think again, because it really is about something else. This day celebrates the day in 1914 when the New York Post Office opened. If you recall, the saying "Neither Snow Nor Rain" is often thought of with mail delivery, etc.
(2)Grandma Moses Day
Grandma Moses was in fact a real person. Her name was Anna Mary Robertson Moses and she was born on September 7, 1860, and lived to be over 100 years young. She was a painter, among other things. Find out more about Grandma Moses at the link below:
https://en.wikipedia.org/wiki/Grandma_Moses(3)National Acorn Squash Day
(4)National Salami Day
(5)Brazil Independence Day
A National Holiday celebrated in Brazil every year on September 7th.
https://en.wikipedia.org/wiki/Independence_Day_(Brazil)
(6)Labor Day in the USA. See our Labor Day topic post for more on this holiday.