Why was archduke franz ferdinand of austria-hungary a key player in world war 1

Archduke Franz Ferdinand of Austria-Hungary was a key player in World War I because it started as a result of his assassination.

Explanation:

Franz Ferdinand was archduke of Austria, imperial prince of Austria, royal prince of Hungary and Bohemia and, from 1896 until his death, the heir to the Austro-Hungarian throne. His murder in Sarajevo on June 28, 1914, precipitated the declaration of war of Austria against Serbia that unleashed the First World War.

omg i dont know oops sorry

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: