<a href="https://en.wikipedia.org/wiki/World_War_II" id="mwXQ" rel="mw:WikiLink" title="World War II">World War II</a>: Thousands of civilians in <a href="https://en.wikipedia.org/wiki/Territory_of_the_Military_Commander_in_Serbia" id="mwXg" rel="mw:WikiLink" title="Territory of the Military Commander in Serbia">German-occupied Serbia</a> are murdered in the <a href="https://en.wikipedia.org/wiki/Kragujevac_massacre" id="mwXw" rel="mw:WikiLink" title="Kragujevac massacre">Kragujevac massacre</a>.