Editing 1868 in science (section)

==Births==
* January 9 – [[S. P. L. Sørensen]] (died [[1939 in science|1939]]), Danish [[chemist]].
* January 31 – [[Theodore William Richards]] (died [[1928 in science|1928]]), American chemist, recipient of [[Nobel Prize in Chemistry]].
* February 7 – [[Aleen Cust]] (died [[1937 in science|1937]]), Anglo-Irish [[veterinary surgeon]].
* March 15 – [[Grace Chisholm Young]] (died [[1944 in science|1944]]), English [[mathematician]].
* March 22 – [[Robert Andrews Millikan]] (died [[1953 in science|1953]]), American [[physicist]], recipient of [[Nobel Prize in Physics]].<ref>{{cite web |title=Robert A. Millikan - Biographical |url=https://www.nobelprize.org/nobel_prizes/physics/laureates/1923/millikan-bio.html |website=www.nobelprize.org}}</ref>
* April 4 
** [[Philippa Fawcett]] (died [[1948 in science|1948]]), English mathematician.
** [[Henrietta Swan Leavitt]] (died [[1921 in science|1921]]), American astronomer<ref>{{cite news |url=https://www.csmonitor.com/2005/0705/p15s01-bogn.html |title=Before computers, there were these humans... |publisher=Christian Science Monitor |first=Gregory M. |last=Lamb |date=July 5, 2005 |access-date=January 1, 2020}}</ref>
* April 5 – [[Percy Furnivall]] (died [[1938 in science|1938]]), English [[surgeon]].
* April 8 – [[Herbert Spencer Jennings]] (died [[1947 in science|1947]]), American [[zoologist]].
* April 14 – [[Annie S. D. Maunder]], née Russell (died [[1947 in science|1947]]), Irish [[astronomer]].
* April 28 – [[Georgy Voronoy]] (died [[1908 in science|1908]]), Ukrainian mathematician.
* April 30 – [[John Brian Christopherson|J. B. Christopherson]] (died 1955), English [[physician]].
* May 2 – [[Robert W. Wood]] (died [[1955 in science|1955]]), American optical physicist.
* June 6 – [[Robert Falcon Scott]] (died [[1912 in science|1912]]), English [[List of explorers|explorer]].
* June 7 – [[John Sealy Townsend]] (died [[1957 in science|1957]]), Irish mathematical physicist.<ref>{{Cite journal | last1 = Von Engel | first1 = A. | doi = 10.1098/rsbm.1957.0018 | title = John Sealy Edward Townsend. 1868-1957 | journal = [[Biographical Memoirs of Fellows of the Royal Society]] | volume = 3 | pages = 256–272| year = 1957 | doi-access =  }}</ref>
* June 14 – [[Karl Landsteiner]] (died [[1943 in science|1943]]), Austrian [[physiologist]].
* July 4 – [[Henrietta Swan Leavitt]] (died [[1921 in science|1921]]), American astronomer.<ref>{{cite book|first1=Deborah|last1=Todd|first2=Joseph|last2=Angelo|title=A to Z of Scientists in Space and Astronomy|location=New York|publisher=Facts of File|year=2003|page=200|isbn=978-0-81604-639-3}}</ref>
* October 23 – [[Frederick W. Lanchester]] (died [[1946 in science|1946]]), English [[Automotive engineering|automotive engineer]].
* November 8 – [[Felix Hausdorff]] (died [[1942 in science|1942]]), German mathematician.
* November 14 – [[Karl Landsteiner]] (died [[1943 in science|1943]]), Austrian-born physiologist, recipient of [[Nobel Prize in Physiology or Medicine]].<ref>{{Cite journal | last1 = Rous | first1 = P.| title = Karl Landsteiner. 1868–1943 | doi = 10.1098/rsbm.1947.0002 | journal = Obituary Notices of Fellows of the Royal Society | volume = 5 | issue = 15 | pages = 294–324| year = 1947 |jstor=769085| s2cid = 161789667}}</ref>
* November 15 – [[Emil Racoviță]] (died [[1947 in science|1947]]), Romanian biologist, [[speleologist]] and explorer.
* November 17 – [[Korbinian Brodmann]] (died [[1918 in science|1918]]), German [[neurologist]].
* December 5 – [[Arnold Sommerfeld]] (died [[1951 in science|1951]]), German theoretical physicist.<ref>Born, Max, ''Arnold Johannes Wilhelm Sommerfeld, 1868–1951'', ''Obituary Notices of Fellows of the Royal Society'' Volume 8, Number 21, pp. 274–296 (1952)</ref>
* December 9 – [[Fritz Haber]] (died [[1934 in science|1934]]), German chemist.<ref>{{cite book | last=Goran | first=Morris | title=The Story of Fritz Haber | publisher=University of Oklahoma Press | year=1967 | isbn=978-0-8061-0756-1 | url=https://books.google.com/books?id=im24AAAAIAAJ | access-date=30 April 2021 | page=38}}</ref>