This was the era of the telegraph and the railroad, of John D. Rockefeller's oil empire and Andrew Carnegie's steel industry. Transportation and communications made great leaps and bounds during this period. The transatlantic telegraph and the Suez Canal made the world much smaller than it had been in the past. And the rise of colonialism in Asia and Africa made it possible for Europe and America to fund all these costly ventures. As production and manufacturing became more important in America, cities began to form a crucial role in American social and economic life. Frederick Jackson Turner's famed 1893 work, "The Frontier Thesis," was nostalgia for a past world: all of the new industries were concentrated in urban centers. And where the industries were, the
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Sherman Antitrust Act, John D. Rockefeller, new industrial order, steel industry. Transportation, foster tremendous growth, economic life. Frederick