Leopold Kronecker
Introduction


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																											**Leopold Kronecker** (; 7 December 1823 – 29 December 1891\) was a [German](/wiki/Germans "Germans") [mathematician](/wiki/Mathematician "Mathematician") who worked on [number theory](/wiki/Number_theory "Number theory"), [algebra](/wiki/Abstract_algebra "Abstract algebra") and [logic](/wiki/Mathematical_logic "Mathematical logic"). He criticized [Georg Cantor](/wiki/Georg_Cantor "Georg Cantor")'s work on [set theory](/wiki/Set_theory "Set theory"), and was quoted by  as having said, "**" ("God made the integers, all else is the work of man").The English translation is from Gray. In a footnote, Gray attributes the German quote to "Weber 1891/92, 19, quoting from a lecture of Kronecker's of 1886".  
																											  
																											
																											Weber, Heinrich L. 1891–1892\. [Kronecker](http://www.digizeitschriften.de/dms/img/?PPN=PPN37721857X_0002&DMDID=dmdlog6). [*Jahresbericht der Deutschen Mathematiker\-Vereinigung*](http://www.digizeitschriften.de/dms/toc/?PPN=PPN37721857X_0002) 2:5\-23\. (The quote is on p. 19\.) Kronecker was a student and life\-long friend of [Ernst Kummer](/wiki/Ernst_Kummer "Ernst Kummer").


In what year did Leopold Kronecker pass away?