King George The Third was a mad man, the colonist left with anger for taxing them without letting them have representation in government. The colonists saw the taxes unfair. The colonists also were mad because thing did not read their complaints and not even answer them. Also that if a troop came to a colonists door then the residents would have to take care of that troop. Women were also treated very wrong.
I could add a fourth category that you could consider in your answer if you are allowed to do that.
Fourth: the leaders of the movement
In point of fact, all of them were effective. The Supreme court heard many cases on the right to vote and the right to be treated as though color were not a determining factor on voting rights. These cases helped bring about the Civil Rights act of 1964 and the Voting rights act of 1965. It put teeth into the 15th amendment, all of which you should look up.
Martin Luther King made a huge impact on Civil Rights. One of key ideas that he had was civil disobedience. Even that was strongly opposed by people like Governor George Wallace. That aside, civil disobedience was a method that peaceful people could tie into and participate in. Look up Rosa Parks as the primary example of someone very welling to stand her ground.
When you look up the Civil Rights act you will see that the Federal Government played a key role in making and enforcing key laws.
The people were ready to determine their rights as citizens. The time was right to unite the participants. Even students themselves were involved in "the people" many of whom were from many parts of the United States. You could google students civil rights movement. People your age were very influential.
Imperialism didn't have a huge role in sparking world war one. It was really assassination of Archduke Franz Ferdinand and his wife.
Useful technology, engineers,and strong willed people. In the end, the US won.
In the Middle East, residents of rural areas have very different lives from those who live in urban areas. The region was originally made up completely of rural communities. However, with 60% of the region's population now living in cities, the Middle East is moving toward a more urban lifestyle. People who live in rural areas make a living by working in agriculture as farmers. City residents are focused on the manufacturing and in the service industries. In rural areas, many people live with their extended families as more people move to the large cities, however, these extended families are beginning to break apart. smaller families are more common in the cities.