In the last third of the XIX century the United States of America made a huge leap in the economy, changing from an agricultural country into a mighty industrial power. In the 80s the United States overtook Britain by smelting of iron and steel, the mining of coal and firmly took first place in the world. At a rapid pace were developing textile and food industries, rapidly went railway construction. Since the 90s quickly started to grow new branches of industry - chemical, electrical, rubber, oil. Great importance has gained the standardization of products and the development of invention. Continue reading...