World War II: Over 1,000 <a href="https://en.wikipedia.org/wiki/Bomber" id="mwww" rel="mw:WikiLink" title="Bomber">bombers</a> attack the small island of <a href="https://en.wikipedia.org/wiki/Heligoland" id="mwxA" rel="mw:WikiLink" title="Heligoland">Heligoland</a>, Germany.