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Rephrase the given passage while maintaining a chronological sequence of events.

Relevant data:
The First World War began in 1914 and involved many countries. It was sparked by the assassination of Archduke Franz Ferdinand of Austria-Hungary by a Serbian nationalist.
gpt
The year 1914 witnessed the beginning of the First World War that embroiled several nations. The reason for the war, the assassination of Archduke Franz Ferdinand of Austria-Hungary by a Serbian nationalist, triggered it all.