The Port of Vancouver hosts a free lecture series at the Kiggins Theatre, 1011 Main St., Vancouver, from 6:30 to 8 p.m. March 7, March 28 and April 24. Pizza, popcorn, and other concessions will be available for purchase, including alcoholic and non-alcoholic beverages. A percentage of food sales will benefit the Fort Vancouver Seafarers Center. Parking is free downtown after 6 p.m. Get more details at portvanusa.com.