The Baptist History and Heritage Society published a number of resources in conjunction with last year's 400 anniversary of Baptists. The resources included Bulletin Inserts and a "History Speaks to Hard Questions Baptists Asks" series. Perhaps your church used the Bulletin Inserts, or you may have noticed some of the "Hard Questions" series in ABP or other media.
Although the 400th anniversary year has passed, these resources remain useful in terms of introductory aspects of Baptist history and beliefs.
Baptist History and Heritage Society's 400th Baptist Anniversary Resources