World War II: About 3,000 inmates from the <a href="https://en.wikipedia.org/wiki/Stutthof_concentration_camp" id="mwyg" rel="mw:WikiLink" title="Stutthof concentration camp">Stutthof concentration camp</a> are forcibly marched into the <a href="https://en.wikipedia.org/wiki/Baltic_Sea" id="mwyw" rel="mw:WikiLink" title="Baltic Sea">Baltic Sea</a> at Palmnicken (now <a href="https://en.wikipedia.org/wiki/Yantarny,_Kaliningrad_Oblast" id="mwzA" rel="mw:WikiLink" title="Yantarny, Kaliningrad Oblast">Yantarny</a>, Russia) and executed.