all countries tried their best to reconstruct the gold standard system in hoping to stabilize the price, to restore the frozen trade, and to push the economic recovery.
The Simple answer is No, tho Aschwitz was the biggest and most well known in eastern Europe
After the Persian victories at Artemisium and Thermopylae, king Xerxes proceeded to Athens, which he captured in the last days of September 480. Meanwhile, the Greek navy, which had managed to get away from Artemisium, stayed on the isle of Salamis, opposite Athens. The presence of the enemy close to Phaleron, the Athenian harbor, created a strategic problem for the Persians: they could not use their port as easy as they wanted. And this was something they had to, because their army was proceeding to the Isthmus of Corinth, and it was imperative that the transport ships, brimful with food, could join the soldiers on the Isthmus. It was, therefore, imperative to expel the Greeks from Salamis.
The Great Wall of China is the longest building on earth with a length of 13,170 miles. Made from a combination of brick, stone, wood and other materials, it was originally constructed primarily to serve as a defence against the nomadic invasions from the north that threatened Chinese states / empires.
It is "C. the power to make treaties" that requires a 2/3 vote from the Senate, since the Founding Fathers wanted to ensure that the United States only made such treaties with reliable nations.