The Hellenistic Age came to an end around the time when the Roman Empire began to emerge, but historians differ on the more precise timeframe since there were many different factors involved.
Answer:
Environmental instability may have been a factor not only in shaping adaptations but also in contributing to the extinction of some lineages. Environmental variability associated with the extinction of large mammal species has been proposed for the southern Kenya region.
Yes. we still use the amendments in our constitution everyday.
Europe's economy improved significantly as new roads and infrastructure were developed.
Former Roman lands were split up and claimed by Germanic kingdoms.
There was a definite decline in Christianity, its followers, and its spread across lands.
Trade increased in the West, resulting in an end to the recession taking place at that time.
According to Jefferson himself, you could divide man in two kinds:
1) Those who did not trust people or feared them. Those people, supposedly, wished to prevent them from having powers by giving that power to a specific class that would hold the responsibility of watching over the people and the nation.
2) Those who are confident in the people and their individual liberties and consider them mostly honest and good people. In that case, there would be no need to give great powers to a higher class. In fact, that would be counterproductive to their ideals.
You will find those two lines of thinking in pretty much every country and every culture. They are considered often as Left or Right, Progressive or Conservative, Liberal or Socialist and so on.
That showed up quickly in the USA since when the Whigs party emerged, it did as opposition to the Democrat Party. Showing an early duality from the beginning of the American Democracy. And even if you have a multiparty system like other countries, you can easily find them dividing generally in two sides that internally agree with MOST issues but disagree fundamentally in many with the opposition.