Which Happened First?

Ladislaus Bortkiewicz

Ladislaus Bortkiewicz
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Ladislaus Josephovich Bortkiewicz was a Russian economist and statistician of Polish ancestry. He wrote a book showing how the Poisson distribution, a discrete probability distribution, can be useful in applied statistics, and he made contributions to mathematical economics.

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

Who was born first?

Timeline

  1. Henrietta Swan LeavittJuly 4, 1868 – December 12, 1921
  2. Josep Comas i SolàDecember 17, 1868 – December 2, 1937
  3. Ladislaus Bortkiewicz (this page)August 7, 1868 – July 15, 1931
  4. René de SaussureMarch 17, 1868 – December 2, 1943
  5. Robert Andrews MillikanMarch 22, 1868 – December 19, 1953
  6. Theodore William RichardsJanuary 31, 1868 – April 2, 1928

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