Calendar August 2025 September 2025 – The Gregorian calendar, used across most of the world and right here in the USA, was introduced by Pope Gregory XIII more than 400 years ago in 1582. Over the course of its 442 years of use, some . middle schools and high schools are also posted in the calendar. Here are key dates you need to know for the 2024-2025 school year: SEPTEMBER 2024 —Sept. 5 — First day of school —Sept. .

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Calendar August 2025 September 2025 August 2025 Calendar Printable: Astrologer and best-selling author Lisa Stardust tells PEOPLE what days this year will be the luckiest for love . Story idea? Email her at gcross@gannett.com. This article originally appeared on Springfield News-Leader: Mark your calendars. U.S. Navy Blue Angels to perform at Branson Airport in August 2025 .