https://theins.ru/history/246145
http://region.expert/unity-day/
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https://rg.ru/2021/11/02/lukianov-trista-let-nazad-byla-provozglashena-rossijskaia-imperiia.html
https://www.svoboda.org/a/crisisniy-argument-pochemu-putin-puskaet-gas-v-evropu/31539883.html
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https://jamestown.org/program/putins-valdai-platitudes-obscure-worsening-domestic-situation/