A likely explanation would be that there was not enough food available for the entire growing civilization at the time, and that the people of the civilzation moved around and were eventually dissolved into different cultures,
Try the my plate website. It tells you how much physical fitness you need for what age you are, and it also explains the diet needed.
What fuelled the great explorations of Spain and Portugal weren't because they liked doing it, it was because silk and spices were super expensive to be traded along the Silk Road, past Arab states that imposed hefty taxes, and had to be shipped all the way across the Mediterranean Sea, where ports made fortunes by levying even more on the goods.
Answer:
Presidential courage
Explanation:
Michael Bechloss is widely known as a historian and author. In his book titled "Presidential Courage: Brave Leaders and How They Changed America, 1789-1989"
He concluded that what makes a good speech is a Presidential courage; the ability of a president to say things that may jeopardize his administration and long-term reputation combined with the insight and tact to present those things in such a manner that the people (Americans) will later come to appreciate.
This meaning belongs to "the Monroe doctrine"<span />
