The acquisition of Silesia

The War of the Austrian Succession began just five months after Frederick II became King of Prussia.
He decided that he wished to take over Silesia.
Frederick the Great won Silesia in the treaty of Aix La Chapelle in 1748.
Would you say that with the acquisition of Silesia, Prussia became a major European power?
 
Silesia was just a stepping stone, a large one, albeit, but the Rhineland was the final step to acquiring a role in European politics.
 
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