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.
Learn more about Eratosthenes, here:
brainly.com/question/1995686
#SPJ4
The First Continental Congress organized a boycott of British goods. The Second Continental Congress declared independence from Britain.
Answer:
Correct answers are:
Molasses act: 1733 - 1764.
Currency act: 1751(expanded in 1764) - 1774.
Sugar act: 1764 - 1766.
Stamp act: 1765 - 1766.
Quartering act: 1765 - 1770.
Declaratory act: 1766 - 1964.
Townshend acts: 1767 - 1770.
Tea act
: 1773 - 1861.
Coercive act: 1774 - 1775.
Quebec act: 1774 - 1791.
Explanation:
During the colonial period British government introduced many taxes whose goal was to strengthen their reign in colonies and to obtain financial benefit. But this taxes were damaging to colonists and therefore were unacceptable. At the end, they led to Revolutio.
The correct answer would be A
Collective security is connected to the idea that collectively, countries decide to not wage wars on each other and respect peace for example by intervening if there is a conflict somewhere and mediating in this conflict.
The correct answer is: <span>(2) coordinating global peacekeeping</span>
