2pm, Zwaanendael Museum, 102 Kings Highway, Lewes on the museum’s 2nd floor (entry via staircase; no elevator). Museum open 10 a.m.–4:30 p.m. Free admission but, due to space restrictions, reservations for the lecture are required by calling 302-645-1148 no later than March 23, 2018. Program incorporates material originally scheduled to be presented on Dec. 9, 2017.

Lecture by historic-site interpreter Andrew Lyter on the glory days of the American whaling industry (1783–1861) followed by its decline and death (1861–1927). Final segment of “Global to Local: International Events and the First State,” a five-part series exploring how world events impacted Delaware’s history.