Boston, in 1792, had 18,000 inhabitants; now, 250,000.

New York, in 1792, 30,000; now, nearly 1,000,000.

Chicago, about thirty years ago, was a little trading post, with a few huts; but yet it contained at the time of the great conflagration in October, 1871, nearly 350,000 souls.

San Francisco, twenty years ago, was a barren waste, but contains to-day 170,000 inhabitants.
Our industrial growth has been equally remarkable.

In 1792, the United States had no cotton mill.