Pyrex, a brand that has become synonymous with glass cookware and bakeware, was first introduced in 1915. Originally developed as a line of borosilicate glass kitchenware, it was designed to withstand extreme temperature changes without breaking. This feature quickly made Pyrex a favorite in kitchens around the world. Over the years, the brand expanded its product range, and today its measuring cups, mixing bowls, and other kitchen gadgets remain popular for their practicality and effectiveness.