On April 11, 1943, the first news about the crime committed in the forest near Katyn was released to the world.

On 4 July 1943, at 23:07, moments after take-off from Gibraltar Airport, Liberator II aircraft AL523 with General Władysław Sikorski on board, crashed into the Mediterranean Sea.

On the morning of 13 April 1940, NKVD soldiers came banging against the doors of the homes of more than 60,000 residents of eastern Poland. They ordered them to pack quickly and loaded them into cattle wagons.

There was a time when large numbers of Poles in the Soviet Union lost their lives simply because of their origin and surname. One of the elements of the “Great Terror” unleashed by Stalin in 1937-1938 was the so-called “Polish Operation”, in which NKVD officers, on suspicion of espionage, mu

On May 12, 1935, Marshal Józef Piłsudski died. He was buried at Wawel, in the crypt under the Tower of Silver Bells.

The Union of Soviet Socialist Republics was the first communist state in history. The decision to create it was taken on 30 December 1922.