John D. Rockefeller was certainly the first to create a consumer product that was sold literally throughout the entire world. Those blue 5-gallon cans showed up in some of the remotest parts of the world.

The paradigm of the development of natural resource-based industry - meatpacking, lard, timber, iron and coal, grain. Cincinnati's lard processing plants looked a lot like JDR's oil refineries thirty years later.

After I finished the Tycoons - on post-Civil War development - I realized how much I didn't know about the first half of the century, even though there had obviously been an enormous amount of development, so I read about and thought about that for a couple of years before I decided I was ready for a book.

The drive to scale in almost every endeavor. The British went very large scale in ship building and a few other industries. Their steel plants were bigger and much more advanced than ours after the Civil War, but we had blown past them by the mid-80s.

We demonstrated what you could do when a band of entrepreneurs settles an empty country with vast resources. The Chinese have a billion people and are running out of water. Tougher problem for sure.

I find her [Frances Trollope] simply delightful, even in her prejudices and cantankerousness. It is a gift to an author to find a funny, wry, perceptive contemporary observer to whom the subject matter seems almost as different and alien, and requiring as much struggling to understand, as it did to me.

The kind of precision manufacturing epitomized in the armories, while it was important, was only a small share of the economy until quite late in the century. Large-scale natural resource development and processing was the name of the game.