Manifestation of American Destiny
A tale of US expansion
•The 20th century was a century of revolutions. We usually think of revolutions in terms of banners and barricades, and the 20th century certainly witnessed social and political upheavals, including the Russian and Chinese Revolutions. But many of the century's most lasting revolutions took place without violence. There was the sexual revolution, the women's liberation movement, and the rise of the giant corporation, big labor, and big government. Revolutions in technology, science, and medicine utterly transformed the way people lived.
•The nation's railroads were still growing. By 1900, more than 195,000 miles of track were in service, and there were still another 16 years of expansion ahead. The biggest opportunities existed in the West and in the South, where large portions of the landscape were still lightly populated.
•the battle of San Juan hill was a key victory for America because it finally broke down the Mexican defenses so that the Americans could use the battle of Santiago de Cuba and others to win the war. It gave a better chance for America to win the war.