20 h 46 m, 4 mar 1825 año - Henry Clay develops the American System
Descripción:
It consisted of three mutually reinforcing parts: a tariff to protect and promote Americans industry. It also devised in the burst of nationalism that followed the war of 1812.Añadido al timeline:
fecha:
20 h 46 m, 4 mar 1825 año
Ahora mismo
~ 200 years ago