Answer: The Invention of the timer gear on fighter aircraft, the monoplane and more advanced aircraft such as fighter and bombers. the tank, the submarine, the machine gun, the dreadnought, the semi-auto rifle, chemical weapons, and the sub-machine gun. The tank, the submarine, the machine gun, semi-auto rifle, and the sub-machine gun are all still used today.
Explanation:
They know a lot more and are updated and have a lot more knowledge and technology.
The Zhou Dynasty.
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~Korey :)
The romans used D) aqueducts
Answer:
He first reiterated the traditional U.S. policy of neutrality with regard to European wars and conflicts. He then declared that the United States would not accept the recolonization of any country by its former European master, though he also avowed non-interference with existing European colonies in the Americas. I hope this is helpful :)