What is the term used to describe the "old stone age", which began about 2.5 million years ago?

The idea of manifest destiny simply stated it was america's destiny to expand from the atlantic ocean to the pacific. the word "destiny" implies an idea that it was within our rights as a nation to expand. in a paragraph of 125+ words, explain what could be wrong with that idea.

The development of england as a nation-state occurred because of increasing?

The draft of the article of confederation wanted to establish strong state governments because