World War II: In German-occupied Poland, the <a href="https://en.wikipedia.org/wiki/Warsaw_Ghetto_Uprising" id="mwuA" rel="mw:WikiLink" title="Warsaw Ghetto Uprising">Warsaw Ghetto Uprising</a> begins, after <a href="https://en.wikipedia.org/wiki/Nazi_Germany" id="mwuQ" rel="mw:WikiLink" title="Nazi Germany">German</a> troops enter the <a href="https://en.wikipedia.org/wiki/Warsaw_Ghetto" id="mwug" rel="mw:WikiLink" title="Warsaw Ghetto">Warsaw Ghetto</a> to round up the remaining Jews.