<a href="https://en.wikipedia.org/wiki/World_War_I" id="mwhw" rel="mw:WikiLink" title="World War I">World War I</a>: Brazil <a href="https://en.wikipedia.org/wiki/Brazil_during_World_War_I" id="mwiA" rel="mw:WikiLink" title="Brazil during World War I">declares war</a> on the Central Powers.