The two party system formed because of the different opinions that each person held. For example, during the civil war, there were abolitionists, and those who want to keep slaves. Each of the party was created to bring voters who have the same views together, and to elect a representative for their own views. Each party chose which views they want to stand in, and voters joined the parties that have the most values that the voter have.
As seen today, most people are in one of the two major parties, Republican and Democrats. They each have a set of values that they believe in, and those who have more of the same values in one would most likely join one.
Historically, the two party system was not something George Washington wanted. He believed that with a split of the country, the people would be plagued with problems. As stated historically: "United We Stand, Divided We Fall". But because of the difference of opinions, it brings the people with the same values together, and separates the others.
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