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Our star, the Sun, brings light and life to the Earth. The Sun is not a boring star --- its surface is covered with magnetic fields, generated in the interior, that come and go over 11-year cycles of solar activity. We have studied the Sun for more than 400 years, and questions about the origins of solar magnetism remain amongst the most important in all of classical physics. The history studying this solar activity has deep ties in Colorado, and was central to Boulder becoming a world-renowned center of scientific research.