By the 1840s, New England was the center of the American anti-slavery movement and was the leading force in American literature and higher education. It was at the center of the Industrial Revolution in America, with many textile mills and machine shops operating by 1830. The region was the manufacturing center of the entire United States for much of the nineteenth century, and it played an important role during and after the American Civil War as a fervent intellectual, political, and cultural promoter of abolitionism and civil rights.