The sinking of the Lusitania is remembered as one of the atrocities of World War I that killed a large number of American civilians. People often think that the sinking propelled the US into the war.
German tension was increasing, so when it sunk the lusitania, they went crazy. It was a british ship, but it had some American passengers, so they obviously were quite enraged. It was a peaceful ship too, doing everything right and still went down.
