[["World War I, also known as the Great War, began on July 28th, 1914.", 47.0], ["The assassination of Austrian Archduke Franz Ferdinand (June 28, 1914) was the main catalyst for the start of the Great War (World War I). After the assassination, the following series of events took place: July 28 - Austria declared war on Serbia.", 0.0]]
when did the great war start
history,wars