Ancient Egyptians used a Nilometer to treat the rise and fall or the Nile during the flood season. This allowed them to predict which crops would be most successful in the coming harvest.
Japan escalates its war in China, drawing increasing U.S. sanctions and widespread outrage. Driven by resource shortages and military ideology, Japan attacks Pearl Harbor in a move that will reshape the course of World War II. See more in this clip from Season 1, Episode 4, "Pearl Harbor."
The story of how America’s battle to control the seas against the terrifying German U-boats in the Atlantic and Japan’s fearsome Navy in the Pacific ultimately turns the tide of the war. See more in this clip from Season 1, Episode 5, "The War at Sea."