<span>In Jean Jacques Rousseau's concept of social contract, the people of a certain state or country give up certain rights in order to be protected by the state. </span>
The main reason why so many of the machines that sped up production and travel were invented during the 18th and 19th centuries is because this was the time of the Industrial Revolution, which saw a great increase in factory production, which helped create the machines in question.
American's rights to freedom of speech, the press, and religion are guaranteed by the A) Bill of Rights. These are the first 10 Amendments to the Constitution which protect important civil liberties.