Boris Mikhailovich Hessen, also Gessen (born August 16, 1893 in Elisavetgrad, died December 20, 1936 in Moscow) was a Russian physicist, philosopher and historian of science. He is most famous for his paper on Newton's "Principia" which became foundational in historiography of science. Boris Hessen was born to a Jewish family in Elisavetgrad, Russia (now Kirovohrad, Ukraine). Wikipedia
The definitive Wikipedia entry for Boris Hessen. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Boris_Hessen