William Thomson, 1st Baron Kelvin William Thomson, 1st Baron Kelvin William Thomson, 1st Baron Kelvin, (26 June 1824 – 17 December 1907) was a Scots-Irish mathematical physicist and engineer who was born in Belfast in 1824. At the University of Glasgow he did important work in the mathematical analysis of electricity and formulation of the first and second laws of thermodynamics, and did much to unify the emerging discipline of physics in its modern form. He worked closely with mathematics professor Hugh Blackburn in his work. He also had a career as an electric telegraph engineer and inventor, which propelled him into the public eye
History of the Jews in 19th-century Poland History of the Jews in 19th-century Poland Jewish Polish history during the 19th century: Official Russian policy would eventually prove to be substantially harsher to the Jews than that under independent Polish rule. The lands that had once been Poland were to remain the home of many Jews, as, in 1772, Catherine II, the tzarina of Russia, instituted the Pale of Settlement, restricting Jews to the western parts of the empire, which would eventually include much Poland although it excluded some areas in which Jews had previously lived. By the late 19th century, over four million Jews would live in