It promoted the (relatively) rapid diffusion of immigrants, language, and domesticated crops and animals. Those factors are examined in excellent detail in Jared Diamond's book, "Germ, Guns and Steel" which I highly recommend for anyone studying the development of world cultures. It's a long read, but well worth it.
It was in "a. his inauguration speech" that <span>President Kennedy said "ask not what your country can do for you - ask what you can do for your country", since he wanted to shift the focus to domestic service. </span>
The federal government has the responsibility to create laws which guide the activities of the people of a particular country. Through these laws, the federal government determine and regulate people's behavior and activities. There are laws guiding virtually every activities that people engage in a country.
B.it taught cultural values and ideas to uneducated slaves.