Complex sentence: Johan Georg Forchhammer (1794-1865), Danish mineralogist and geologist, was born at Husum, Schleswig, on the 24th of July 1794, and died at Copenhagen on the 14th of December 1865.
Split into simpler sentences: Johan Georg Forchhammer (1794-1865), was a Danish mineralogist and geologist. Born at Husum, Schleswig, on the 24th of July 1794, and died at Copenhagen on the 14th of December 1865.