1. The worlds longest wall an biggest ancient architecture
2. It has a stunning array of scenery
3. The official length is 21,196.18 km<span />
Answer:
The steam machine
Explanation:
James Watt, had no access to primary education, being educated initially by his parents, and at age 18, interested in studying and manufacturing instruments of measures, that's how he arrived in the steam machine. His name is, until today, honored by the international system of measures, in Watt measurement, which calculates the energy expended as a function of time.
The south was the main trader before the civil war and It hurt the agricultural trading the south was doing with Europe. The south lost money and the north kept the agricultural product trade local
The group included 120 wagons, about 1,000 people and thousands of livestock. Their trek began on May 22 and lasted five months. It effectively opened the floodgates of pioneer migration along the Oregon Trail and became known as the "Great Migration" of 1843.