For Copernicus, I think it was On the Revolution of the Celestial Spheres. I think For Newton it was Philosophiæ Naturalis Principia Mathematica.
"<span>New railroad lines across the Great Plains made it cheaper to ship cattle by rail" would be the best option, not only because of the reduced price, but because of the increased timing and efficiency. </span>
If we were to be forced into a system such as a dictatorship, the people would have no say. With the current system of government, the people can elect representatives who decide for the people which is what we want, instead of a government who has complete control over everyone and everything.
The event in Boston helped to unite the colonies against Britain. What started as a minor fight became a turning point in the beginnings of the American Revolution. The Boston Massacre helped spark the colonists' desire for American independence, while the dead rioters became martyrs for liberty
