Moscow was mentioned for the very first time in historical records when two princes met there for a great banquet.
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The Moscow Metro was opened to the public.
Seventeen people went on trial in the second Moscow Trials.
Elton John and his entourage flew into Moscow, making him the first western pop star to tour the USSR.
Chemical elements Moscovium, Tennessine, and Oganesson were added to the Periodic Table of Elements.
The 14th IAAF World Championships opened in Moscow, Russia.
