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There are three main sources of group theory.  The first source of group theory was number theory, beginning in the late 1700s.  A second source was the theory of algebraic equations, leading to the study of permutations, also beginning in the late 1700s.  A third source of group theory was geometry beginning around 1800.

There are three main sources of group theory.  The first source of group theory was number theory, beginning in the late 1700s.  A second source was the theory of algebraic equations, leading to the study of permutations, also beginning in the late 1700s.  A third source of group theory was geometry beginning around 1800.

[[category:mathematics]]

[[Category:Algebra]]