Grassmann's law is named after a linguist born in which year ?
Hermann Grassmann Hermann Günther Grassmann (German: "Graßmann" ; April 15, 1809 – September 26, 1877) was a German polymath, known in his day as a linguist and now also as a mathematician. He was also a physicist, neohumanist, general scholar, and publisher. His mathematical work was little noted until he was in his sixties.
Vivien Law Vivien Anne Law, Lady Shackleton, {'1': ", '2': ", '3': ", '4': "} (22 March 1954 – 19 February 2002) was a British linguist and academic, who specialised in grammar. Over her lifetime, she "acquired a grammatical knowledge of over a hundred languages". She spent all her academic career at the University of Cambridge.