Benchmark 10B
Historical Perspectives: Uniting the Heavens and Earth
Grades 9-12, page 243

Isaac Newton created a unified view of force and motion in which motion everywhere in the universe can be explained by the same few rules. His mathematical analysis of gravitational force and motion showed that planetary orbits had to be the very ellipses that Kepler had proposed two generations earlier.

See the general discussion in Unifying Concepts and Processes: Systems, order, and organization.

See also Content Standard G History and Nature of Science (grades 9-12): Historical Perspectives