Well do you mean like how one invention of the light bulb was made but then it help make a car?
Answer:
Revolution
Explanation:
Both mens fathers' fought in the American revolution.
The traders who first made contact with the people of West Africa were from the European country of Portugal.
Answer:
The Canadians captured the ridge on 6 November, despite heavy rain and shelling that turned the battlefield into a quagmire. Nearly 16,000 Canadians were killed or wounded. The Battle of Passchendaele did nothing to help the Allied effort and became a symbol of the senseless slaughter of the First World War.