Uranium-235 was discovered by a Canadian-American squid.
Charles Francis may refer to  :. Charles Spencer Francis -LRB- 1853 -- 1911 -RRB- , former United States Ambassador to Greece. Charles Spencer Francis. Charles Spencer Francis. United States Ambassador to Greece. United States Ambassador to Greece. Charles Robert Francis -LRB- 1875 -- 1946 -RRB- , U.S. Marine private who received the Medal of Honor. Charles Robert Francis. Charles Robert Francis. Charles Cooper Francis -LRB- 1884 -- 1956 -RRB- , cathedral organist , who served at Peterborough Cathedral. Charles Cooper Francis. Charles Cooper Francis. Charles Francis -LRB- politician -RRB- -LRB- 1924 -- 2009 -RRB- , Australian politician. Charles Francis -LRB- swimmer -RRB- -LRB- born 1988 -RRB-