Which Happened First?

Christine Ladd-Franklin

Christine Ladd-Franklin
Image: Ferdinand Hamburger Archives of The Johns Hopkins University, photo prise avant 1909 : "To the best of our knowledge, the photograph of Christine Ladd-Franklin appearing on the Vassar website was created and published in a photo album prior to 1909, so it may be presumed to be in the public domain. I cannot certify absolutely that this is the case, but that is our belief. So we have no objection to your using it in Wikipedia." James Stimpert Senior Reference Archivist Special Collections Sheridan Libraries Johns Hopkins University · Public domain · source

Christine Ladd-Franklin was an American psychologist, logician, and mathematician.

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

Who was born first?

Timeline

  1. Cesare ArzelàMarch 6, 1847 – March 15, 1912
  2. Christine Ladd-Franklin (this page)December 1, 1847 – March 5, 1930
  3. Joseph Achille Le BelJanuary 21, 1847 – August 6, 1930
  4. Julia LermontovaJanuary 2, 1847 – December 16, 1919
  5. Mary Watson WhitneySeptember 11, 1847 – January 20, 1921
  6. Sarah Frances WhitingAugust 23, 1847 – September 12, 1927

Related

Play a round with Science · 19th century