Question: Who was born later, Pyotr Gorlov or Christian Thonhofer?
Sentence (from "Pyotr Gorlov"): Pyotr Nikolayevich Gorlov( 11 May 1839 in Irkutsk, Irkutsk Governorate, Russian Empire – 20 November 1915) was a geologist and engineer who explored coal deposits in the Donets Basin, the Caucasus, Central Asia and Ussuri Krai.
Relevant evidence: Yes