Today marks the 100th anniversary of the beginning of World War I. Take a look back at one of the bloodiest conflicts in human history.
Today marks the 100th anniversary of the beginning of World War I, when Austria-Hungary invaded Serbia following the assassination of Archduke Franz Ferdinand. The battle would last a bloody four years and cost more than 37 million civilian and military lives in one of the deadliest conflicts in human history.
Victoria Sanchez photo
Oscar Flores photo
Tracy Lehr Photo
From Scott Gries/Comedy Central
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