Write a paragraph that tells readers what impact new technologies had on the development of industry in the gilded age.

Mark Twain and Charles Dudley Warner were the first to call the years after the Civil War the "gilded age." Struck by what they saw as the rampant greed and speculative frenzy of the marketplace, and the corruption pervading national politics, they satirized a society whose serious problems, they felt, had been veiled by a thin coating of gold.