1840 in Russia

• Monarch – Nicholas I

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• Battle of the Valerik River
• Convention of London (1840)

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• April 9 – Praskovya Uvarova, archaeologist (d. 1924)
• May 7 – Pyotr Ilyich Tchaikovsky, composer (d. 1893)

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1840 in Russia

Category:Years of the 19th century in the Russian Empire

Category:1840 by country

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