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Assassination of Archduke Franz Ferdinand
A young Serbian nationalist named Gavrilo Princip killed Ferdinand and started a conflict between Austria-Hungary and Serbia. His assassination was the primary cause. -
One Month Later, The World Erupts In War
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Austrian and Serbian War
Austria-Hungary declared war on Serbia due to the assassination of Ferdinand. World War I begins. -
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World War I
"May have been the war to end all wars" (History.com) but, it was also the start of new technologies civilian and military wise. -
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First Battle of Marne
French and British forces confronted the invading Germany army, which had by then penetrated deep into northeastern France, within 30 miles of Paris. -
First Gas Mask
Due to the chemical weapons killing thousands of people, the people in the war had to find a way to breathe without dying. -
First Steel Helmet
The first steel helmet used in World War I was the “Brodie” helmet, it was first introduced to British soldiers during WW1. -
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The Battle of Verdun
the longest battle in modern history
