3. Did you know the first successful human organ transplant was a kidney transplant performed by Dr. Joseph E. Murray in 1954 between identical twins, Ronald and Richard Herrick, at Brigham and Women's Hospital (then Peter Bent Brigham Hospital) in Boston, ushering in the modern era of transplantation ? (While earlier attempts and tissue grafts existed, this marked the first time a whole, functioning organ was successfully transferred, with the donor living many years after.)
4. Did you know the scientific name for water is dihydrogen monoxide (DHMO), reflecting its two hydrogen (di-) and one oxygen (-oxide) atoms ?
5. Did you know while early traffic signals existed, African American inventor Garrett Morgan patented the first three-position traffic signal in 1923, adding the crucial "caution" (yellow) light to prevent collisions, a design later sold to General Electric and forming the basis for modern traffic lights ? (His innovation introduced an all-stop setting, giving drivers time to clear the intersection, making it much safer than earlier stop/go systems.)
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