The Dedham Historical Society's 2012-13 lecture series will kick off Thursday at 7:30 p.m. with a presentation by Kathy Kottaridis, executive director of Historic Boston Inc. Historic Boston is a nonprofit that works to rehabilitate historic and culturally significant properties. Kottaridis will discuss several of the organization’s recent projects and how they have made a difference in the community. The Dedham Historical Society is located at 612 High St., and more information is available by calling 781-326-1385.