The Historical Evolution of Pittsburgh

/kloc-In the late 7th century, European colonists established fur trading posts. /kloc-In the middle of the 0/8th century, French colonists established a stronghold in Duquesburg. 1758 was occupied by British colonists, and the city was named after British Prime Minister William Pitt. 18 16 merged with some nearby settlements. The Pennsylvania Canal was completed in 1837, and the railway arrived in 185 1 year, becoming an important land and water transportation hub.

At the beginning of the 20th century, Pittsburgh's industry and commerce developed rapidly, becoming the center of the American industrial revolution, and a large number of pioneers of the industrial revolution were born. Andrew carnegie, the king of steel, established Carnegie Steel Company (later became the American Steel Company), which once monopolized more than half of the steel production in the United States and became the trust of the steel industry; Andrew Mellon founded the Mellon consortium, became the richest man in the United States at that time, and later became the US Treasury Secretary; George Westinghouse, American engineer and manufacturer. Many of its inventions have won more than 400 patents, including air braking (1869), railway braking signal facilities (1882) and practical methods of power transmission. He founded Westinghouse Electric Company at 1886. Heinz founded the world food giant Heinz Company.

On September 24th and 25th, 2009, the G20 Summit was held at the david lawrence Convention Center in Pittsburgh. Because of the characteristics of steel, bridges, sports and robot manufacturing, Pittsburgh is nicknamed the city of steel, the city of bridges, the city of champions and the city of robots.