Ancient Greek period can be divided into classical period and Hellenistic period. Hellenistic mathematicians were famous in spreading their discoveries throughout the world. Hellenistic period was great as many philosophers and mathematicians emerged during that age.
There were many famous Greek mathematicians like Pythagoras, Aristotle, Ptolemy and Euclid.
Pythagoras Theorem proposed by Pythagoras is in use even today.
‘Elements’ is the famous book of science written by Euclid. This was book was based on Geometry. The science of mathematics reached it pinnacle during Hellenistic period.
As a matter of a fact many American Indians were taken captive by non-Indians, tortured, murdered and expelled into slavery. Because Europeans in your American colonist threatened native people, many resisted might lead to defend their families and homelands
The giant redwood trees of Muir have an average age of 800 to 900 years, while it's height is of 100 and 150 metres.
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Inflation- When goods and services become more valuable without the value of dollar increasing
Gold Standard- A country's pledge to set a fixed currency based on the price of gold
Deflation- When goods and services become less valuable, increasing the value of the dollar
Sound money- Gold coins
Easy money- Greenbacks
Fiat Currency- A form of money whose value is determined by the government
