Which Happened First?

Carl Auer von Welsbach

Carl Auer von Welsbach
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Carl Auer von Welsbach, who received the Austrian noble title of Freiherr Auer von Welsbach in 1901, was an Austrian scientist and inventor, who separated didymium into the elements neodymium and praseodymium in 1885.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

Timeline

  1. Heinrich HertzFebruary 22, 1857 – January 1, 1894
  2. Konstantin TsiolkovskySeptember 5, 1857 – September 19, 1935
  3. Carl Auer von Welsbach (this page)September 1, 1858 – August 4, 1929
  4. Rudolf DieselMarch 18, 1858 – September 1913
  5. Aleksandr PopovMarch 4, 1859 – December 31, 1905
  6. L. L. ZamenhofDecember 15, 1859 – April 14, 1917

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Carl Auer von Welsbach (September 1, 1858 – August 4, 1929) · Which Happened First?