President Theodore Roosevelt oversaw the realization of a long-term United States goal—a trans-isthmian canal. Throughout the 1800's, American and British leaders and businessmen wanted to ship goods quickly and cheaply between the Atlantic and Pacific coasts.
During Romans peace was called Pax Romana
In the early years of the 20th century, Booker T. Washington, W. E. B. Du Bois, and Marcus Garvey developed competing visions for the future of African Americans.
Civil War Reconstruction failed to assure the full rights of citizens to the freed slaves. By the 1890s, Ku Klux Klan terrorism, lynchings, racial-segregation laws, and voting restrictions made a mockery of the rights guaranteed by the 13th, 14th, and 15th amendments, which were passed after the Civil War.
The problem for African Americans in the early years of the 20th century was how to respond to a white society that for the most part did not want to treat black people as equals. Three black visionaries offered different solutions to the problem.
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Japanese women mostly escaped the more oppressive features of Confucianism - prohibition of remarriage for widows, seclusion within the home, and foot binding. They could own property, divorce, and remarry. Korean women were tied down to Confucian values - became stricter.
Moctezuma I was a great leader, probably the best of the Aztec rulers. He was a great military commander, but also politician and diplomat. Moctezuma I wanted to have everything under control in the empire, and also to put order in it and make a proper class system. This resulted in multiple reforms in the political, social, and economic spheres. Politically, Moctezuma I managed to form the Triple Alliance, managing to make an alliance with two other empires, sharing the land, resources, and rule, while maintaining the dominant power in it. He established himself as the absolute authority, so everyone had to notify him of everything that was considered important and he had to give permission for it to happen. Socially, he created the classes, setting up rules which people can be in what class, what kind of homes can they have, what objects they are allowed to visit, but also forbid mixing of the classes. Economically, he created aqueducts and much better developed agriculture and usage of the natural resources, while also developing the trade.