J.P Morgan
One of the major problems that the United States faced during the Twentieth Century was the race of all people. Many people in the United States did not get along with others that were not of their same race which led to many problems.
the first major cities in the united states developed along waterways or either water routes.
The first major factor was the end of World War II. Russia had shown its dominance during the war and America was worried about its power.
Russia and China
A major result of prohibition during the 20s was an increase in gang activity.
carnegie steel corporation
Nobles and czars.
The urban problems that developed in the 19th century included drinking as well as poor living conditions.
Samuel de Champlain during the early part of the 17th century
the economy Major of those four are the natural monopoly. geographic monopoly, govrnement monopoly. technological monopoly.
Slavery
Slavery
Major League Baseball
Photochemical
The scoring system for tennis was developed by Major Walter Clopton Wingfield in the late 19th century.
I think that major cause is religious discrimination or untouchability
== == The 19th century saw the invention of steam engines and internal combustion motors and their application to transportation in the form of steam ships, locomotives and the first automobiles. By the end of the century gasoline motors were sufficiently powerful that the Wright brothers were able to use one in the firct airplane in 1903. Large, practical electric generators were developed as were electric lights and telephones to put the energy to use. Popular democracy, trade unionism and, unfortunately,Communism, were all developed in the 19th century and had major impacts on the 20th.