Answer:
The population of Western Europe became more rural as Roman centers of trade collapsed, cities were left without strong leadership. Other city dwellers moved to rural areas to grow their own food.
Explanation:
The Age of Enlightenment was a philosophical movement which dominated and changed many of the ideas held in Europe during the 18th century. The main goals of Enlightenment thinkers were progress, reason, tolerance, liberty, and ending the abuses by the church and state.
The ideas of the Enlightenment were spread from Europe to America by Thomas Jefferson and Benjamin Franklin. They came to Europe from America and participated in the science and political debates. They then returned to America and many of the ideals of the Enlightenment were incorporated into the Declaration of Independence
I believe it is the Tigris-Euphrates river valley
Not all industries prospered in the Boom in the 1920s of America.
Old industries such as Coal and Cotton did terribly in the Boom as people became interested in the new products such as clothes made from artificial material(polyester). Coal was an old source of power, in the 1920s oil and electricity became greatly used.
Agriculture was also poor many farmers left the farmland to find work in the city. As new people emerged, new demands also appeared. Instead of fresh fruits and vegetables, Americans preferred cereals and bread which lead to the decrease of demands in fruits.
In the 1920s, Argentina and Canada began to supply the world crops which lead to the drops of demands from USA directly. Later in the year Prohibition(anything related to alcoholic drinks was made illegal) was introduced which caused an instant drop to the demands of barley(barley was used for making alcoholic drinks such as beer)
