Last modified on 25 June 2014, at 11:13

Category:Pyotr Semenov-Tyan-Shansky

English: Pyotr Semenov-Tyan-Shansky (1827-1914), was a Russian geographer and statistician who managed the Russian Geographical Society for more than 40 years.
Русский: Пётр Петрович Семёнов-Тянь-Шанский (1827-1914) — русский географ, ботаник, статистик и общественный деятель.