<a href="https://en.wikipedia.org/wiki/American_Civil_War" id="mwkg" rel="mw:WikiLink" title="American Civil War">American Civil War</a>: <a href="https://en.wikipedia.org/wiki/Baltimore_riot_of_1861" id="mwkw" rel="mw:WikiLink" title="Baltimore riot of 1861">Baltimore riot of 1861</a>: A pro-<a href="https://en.wikipedia.org/wiki/Secession_in_the_United_States#Confederate_States_of_America" id="mwlA" rel="mw:WikiLink" title="Secession in the United States">Secession</a> mob in <a href="https://en.wikipedia.org/wiki/Baltimore" id="mwlQ" rel="mw:WikiLink" title="Baltimore">Baltimore</a> attacks United States Army troops marching through the city.