Are you talking about Pete Seeger or someone else?
<span>"the strength and courage to suffer without retaliation" </span>
In colonial America, Africans "contributed" to society by being a source of income for people who bought and sold them into slavery. They also contributed by being laborers in the southern plantations.
Women contributed to the society by being a house wives --meaning they took care of the house-- as well as cooking meals for the family and taking care of the children.
Native Americans, in the earlier days, contributed by trading with settlers and teaching them how to do things in their environment.
(Sorry I really don't know what the children did)
No, Europe is made up of many different countries such as France, Italy, United Kingdom, Spain, and many more.
Federalism in the idea of the power being shared between the national and state level. checks and balances to keep the government from becoming tyrannical.