About International Dot Day
International Dot Day is named for the classic Peter H. Reynolds storybook The Dot. Available in English and many other languages, the book shares the story of a girl who begins a journey of self-discovery after a caring teacher challenges her to “make her mark.”
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Slinky Day
The Slinky was invented and developed by Richard T. James in 1943 and demonstrated at Gimbels department store in Philadelphia in November 1945.
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National Cinema Day 📽️
A national holiday that aims to entice cinema-goers back to the theaters with discounted tickets.
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National Video Games Day
Video Games are the form of entertainment that generates the most revenue, with many games earning more than blockbuster movies.
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Other Observances on September 15th 2025
World Afro Day
A day where people are encouraged to celebrate kinky, coiled or curly afro textured hair and to learn more about it.
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Serbian Unity, Freedom and National Flag Day
The Salonica front, was a military theatre of the first world war formed as a result of an attempt by the Allied Powers to aid Serbia, in 1915, against the combined attack of Germany, Austria-Hungary and Bulgaria.
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Return of Primorska to the Motherland
Primorsko Reunification Day has been a national holiday since 2006, but it is not a work-free day.
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