Answer:
Mesopotamia was an ancient region between two rivers. The land near the rivers was fertile and the general land was not so fertile so they invented the irrigation system. This region is today's Iraq.
They were the first civilisation and the first to live in cities and have a government. Babylon was the capital of Mesopotamia. They discovered the first written language, culture and agriculture. Mesopotamia's major cities were Baghdad, Babylon, and Nippur.
A. The US made the Gadsden Purchase.
The US never sold Texas. US won the war. Mexican cession was the US taking land.
According to the Constitution, the Russian Federation is divided into 85 federal subjects (constituent units), 22 of which are "republics". Most of the republics represent areas of non-Russian ethnicity, although there are several republics with Russian majority. The indigenous ethnic group of a republic that gives it its name is referred to as the "titular nationality". Due to decades (in some cases centuries) of internal migration inside Russia, each nationality is not necessarily a majority of a republic's population.
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