Category:Pyotr Semenov-Tyan-Shansky

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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.