The important contribution to navigation made by Eratosthenes in the third-century bc was a reasonably accurate calculation of the circumference of our planet.
Who is Eratosthenes?
Eratosthenes was born in 276 BC and died in 194 BC. He was a well-known poet, mathematician, a researcher in geography, and theorist of music. He was the first to gauge the size of the planet.
The Earth was first measured by Eratosthenes of Cyrene. The precise measurement of Earth's circumference was greatly aided by Eratosthenes' work in the third-century bc.
As a result, the Eratosthenes in the third century bc accurate calculation of the Earth.
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The answer is trade rights
The system of government of the United States, initiated as an experiment in the matter of freedom and democracy in 1776, has given evidence of its admirable resistance and adaptability. Even though the United States is often referred to as a democracy, it is more accurate to define it as a federal constitutional republic. What does that mean? "Constitutional" refers to the fact that the government of this country is based on a Constitution that is the supreme law of the nation. The Constitution not only provides the framework that defines what the structure of the federal government and state governments should be, but also imposes signifi cant limits on the powers of the federal government all of them. "Federal" means that the governments of the 50 states exist alongside the national government. The "republic" is a form of government in which the people hold power, but elect representatives to exercise it.
They built the first city in the world
They enacted the earliest known comprehensive legal code. ...
They developed the first ever positional number system. ...
They could perform advanced arithmetic calculations.
MESOPOTAMIA IS RESPONSIBLE FOR MANY “FIRSTS” IN HUMAN HISTORY
C to isolate the soviets between the NATO and a hostile china
