Why one historian uses social media to remember D-Day in real time NPR | By Henry Larson, Zephyr Weinreich Published June 6, 2026 at 5:05 PM EDT LinkedIn Email Listen • 3:50 At the National World War II Memorial, historian Alex Kershaw has found an unlikely way to keep D-Day alive: live social media posts timed to the events of June 6, 1944. Copyright 2026 NPR