November 25

1870 – Astrophysicist Lewis Morris Rutherfurd is born, known for creating the first telescopes designed for celestial photography.
1915 – Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
1920 – Actor Ricardo Montalban (Khan Noonien Singh) is born.
1926 – Actor Jeffrey Hunter (Captain Christopher Pike) is born.
1974 – Dr. Barnard performs the world’s first "twin heart" operation when he implants a second human heart alongside the old one in a 58-year-old patient.