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

On October 30, 1989 three thousand people with candles in their hands surrounded the KGB building in Moscow. They wanted to show they remember about the victims of the Stalin crimes.

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 24 March 1942, the first stage of the evacuation of the soldiers serving in the so-called Anders Army from the Soviet Union to Persia began. About 78,000 exiles, who joined the Polish army and 37 thousand civilians, including about 18,000 Polish children were evacuated in total.

The date of 11 November 1918, being the day on which Poland regained its independence, is a symbolic date. Exactly on that day, an armistice ending the First World War was concluded in a wagon in the forest of Compiègne.

Helena Grodecka-Możdżeniowa, was one of about 90,000 victims of the third great deportation, which began on 29 June 1940. Most of those deported were refugees from the German occupation, mostly Jews. Poles accounted for about 11 per cent.