The Sippican Historical Society's 2015 lecture series begins on Jan. 22 with the topic "Political Polarization: What is it, What caused it, What are its consequences and Can anything be done about it?"

Presented in cooperation with The Friends of Marion Council on Aging and the Second Half, the lecture by Bob Miller will address how the the vast and growing gap between liberals and conservatives, Republicans and Democrats has become a problematic and defining feature of American politics. From federal legislatures down through local activist organizations, the ideological divide is wider than ever, with voters viewing both politics and politicians from a distinctly partisan perspective.

The presentation, to be held at the Marion Music Hall (164 Front St.) at 5 p.m., is offered free to the public, with no reservations required. Parking is available across the street at Island Wharf.

Speaker Bob Miller earned a bachelor's degree in political science from Ohio State University and has participated in several political campaigns over the years. A graduate of the Ohio State University College of Law, he has more than 30 years of experience in the administration of the Employee Retirement Income Security Act in the mutual fund and insurance com­pany industries.

Now retired, Miller is pursuing his interest in political polarization by teaching a course on it at The Second Half: Lifelong Learning Institute, a community-based membership, self-governing, nonprofit organization whose programs provide intellectual stimulation and social interaction.

For more information, contact the Sippican Historical Society at 508-748-1116.