"1718-05-30Z"^^ . . "1790-01-05Z"^^ . . . "1718Z"^^ . "1790Z"^^ . "Sch\u00E4ffern, Jacob Christian; Sch\u00E4ffer, Jacob Christian; Sch\u00E4ffer, Jakob Christian"@en . "German inventor, professor, botanist, entomologist and ornithologist" . . "Sch\u00E4ffer, Jacob Christian"@en . . . "Jakob or Jacob Christian Sch\u00E4ffer or Sch\u00E4ffern (31 May 1718, Querfurt \u2013 5 January 1790) was a German dean, professor, botanist, mycologist, entomologist, ornithologist and inventor."@en . . "Jacob Christian Sch\u00E4ffer"@en . "1718-05-31Z"^^ . .