Some of them turned very violent, and some of them turned out peaceful.
The correct answer is the Suez Canal in Egypt.
The others are in different continents: The Grand Canal in Europe (Venice), the Panama Canal in the Americas ( and splits the two Americas) and Erie Canal is in America (NY).
The US government loaned money to failing business to allow them to keep workers and not lay them off. They also created jobs that helped the US rebound from the depression.
They also allowed women to work in the factories, for all the men were getting ready to go to war
hope this helps
One similarity between the two is that they both introduced a new way of thinking.