Laundry soap

Although he didn’t invent Crest toothpaste, he dramatically improved the Crest formula for protecting our teeth so we can smile in all those selfies  being taken nowadays. Smitherman’s distinguished career as an inventor at Proctor & Gamble, the parent company of Crest, is impressive by itself. But it’s even more impressive when set within the longer legacy of black … [Read more...] about Wednesday Open Thread: More Black Scientists and Inventors