World War II: Up to 2,500 people die in a <a href="https://en.wikipedia.org/wiki/Mass_suicide_in_Demmin" id="mw-w" rel="mw:WikiLink" title="Mass suicide in Demmin">mass suicide in Demmin</a> following the advance of the <a href="https://en.wikipedia.org/wiki/Red_Army" id="mw_A" rel="mw:WikiLink" title="Red Army">Red Army</a>.