<a href="https://en.wikipedia.org/wiki/Mexican–American_War" id="mwdw" rel="mw:WikiLink" title="Mexican–American War">Mexican–American War</a>: The <a href="https://en.wikipedia.org/wiki/Treaty_of_Guadalupe_Hidalgo" id="mweA" rel="mw:WikiLink" title="Treaty of Guadalupe Hidalgo">Treaty of Guadalupe Hidalgo</a> is signed.