"We examine portage sites in the U.S. South, Mid-Atlantic, and Midwest, including those on the fall line, a geomorphologic feature in the southeastern U.S. marking the final rapids on rivers before the ocean. Historically, waterborne transport of goods required portage around the falls at these...

"In this essay I propose that the adoption of the U.S. dollar as a common currency shortly after the ratification of the Federal Constitution and the accompanying transition from a fiat to specie standard was a pivotal moment in the nation's early history and marked an improvement over the...