World War II: <a href="https://en.wikipedia.org/wiki/Maastricht" id="mwyg" rel="mw:WikiLink" title="Maastricht">Maastricht</a> becomes the first Dutch city to be liberated by <a href="https://en.wikipedia.org/wiki/Allies_of_World_War_II" id="mwyw" rel="mw:WikiLink" title="Allies of World War II">allied forces</a>.