The Velvet Revolution took place in "Czechoslovakia," since this was a non-violent (some called it "gentle") revolution from November 17 to December 29, 1989.
I think it’s the fourth choice for the first picture
I think that the ship that German submarine sunk was the Lusitania ship
The answer is the final solution. It was a Nazi arrangement for the elimination of the Jews amid World War II. The "Final Solution of the Jewish Question" was the official code name for the murder of all Jews inside achieve, which was not restricted to the European landmass. This approach of think and efficient genocide beginning crosswise over German-involved Europe was figured in procedural and geo-political terms by Nazi authority in January 1942 at the Wannsee Conference close Berlin, and finished in the Holocaust which saw the executing of 90 percent of Jewish Poles, and 66% of the Jewish populace of Europe.