This Day in History: June 21International Day of the Celebration of the Solstice
1915 – in the summer cottage village of Kuntsevo (now the territory of Moscow) Kazimir Malevich painted the "Black Square" - the "icon" painting of the world avant-garde.
1925 – the first taxis appeared in Moscow - 16 Renault cars.
1941 – World War II: German troops received a prearranged signal to begin military operations against the USSR on June 22 according to the Barbarossa plan. German sabotage groups began to operate on the territory of the USSR. German fleet began mining the entrance to the Gulf of Finland.
1956 – the USSR adopted the R-5M rocket - the first Soviet missile with a nuclear warhead.
2018 – was launched the ship "Ob", the first non-nuclear icebreaker of the Rosatom fleet.
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