Invention

What is National Sewing Machine Day? National Sewing Machine Day is celebrated ...

What is National Zipper Day? National Zipper Day, celebrated annually on April ...

What is Rubber Eraser Day? Rubber Eraser Day, observed annually on April ...

What is Safety Pin Day? Safety Pin Day is celebrated annually on ...

What is Teflon Day? Teflon Day, celebrated on April 6th, commemorates the ...

What is Kid Inventors’ Day? Kid Inventors’ Day, celebrated annually on January ...

What is Dag van de Uitvinder (Inventor’s Day)? Dag van de Uitvinder, ...