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Born in the early 1900s, Chalmers invented the menstrual cup out of a passion for bettering women's sexual health. Chalmers created her first version of the menstrual cup in 1937, shortly after the invention of the tampon. She sought to create a reusable menstrual product to compete with the existing disposable menstrual products on the market.
Early menstrual cups were made of rubber. [166] The first menstrual-cup applicator was mentioned in a 1968 Tassaway patent; there are also 21st-century versions, but they have not been a commercial success, as of 2024. [167] No medical research was conducted to ensure that menstrual cups were safe prior to introduction on the market. [77]
A cup is an open-top vessel (container) used to hold liquids for drinking, typically with a flattened hemispherical shape, and often with a capacity of about 100–250 millilitres (3–8 US fl oz). [1] [2] Cups may be made of pottery (including porcelain), glass, metal, [3] wood, stone, polystyrene, plastic, lacquerware, or other
Leo Hulseman, a former employee of the Dixie Co. in the 1930s, created the "Solo Cup", a paper cone he made at his home and sold to bottled-water companies. Later the company developed other products, like wax-coated cups and the plastic Cozy Cup. The wax-coated cups were added to its lineup in the 1950s, as fountain sodas gained popularity.
Marion O'Brien Donovan (October 15, 1917 – November 4, 1998) was an American inventor and entrepreneur.Recognized as one of the era's most prominent female inventors, [1] she secured a total of 20 patents for her creations.
It's believed to be the largest one ever made, measuring 5-feet across and drenched in over 70 pounds of chocolate. 3. There's such a thing as a spreadable Reese's.
From 1945 to 1973, it is estimated that up to 4 million parents in the United States had children placed for adoption, with 2 million during the 1960s alone. [2] Annual numbers for non-relative adoptions increased from an estimated 33,800 in 1951 to a peak of 89,200 in 1970, then quickly declined to an estimated 47,700 in 1975.
The cups are great quality, she notes, so if you drink from the cups daily and consider each day of use worth a dollar, it’s well worth it. “I’m a dancer, so a water bottle is always with me ...