On this day:
1882: Robert Koch discovers the bacterium responsible for tuberculosis
1896: Aleksander Popov achieves the world’s first radio transmission
1965: NASA spacecraft Ranger 9 crashes into the Moon
Born on this day:
1884: Peter Debye: Dutch/American physicist, chemist, Nobel Prize laureate
Gone on this day:
1882: Henry Wadsworth Longfellow: American poet
