<a href="https://en.wikipedia.org/wiki/Johnstown_Flood" id="mwng" rel="mw:WikiLink" title="Johnstown Flood">Johnstown Flood</a>: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of <a href="https://en.wikipedia.org/wiki/Johnstown,_Pennsylvania" id="mwnw" rel="mw:WikiLink" title="Johnstown, Pennsylvania">Johnstown, Pennsylvania</a>.