Original sentence: The museum is composed in part by private collections purchased or donated to the museum over the centuries.The sale of the collection was prevented by the Kingdom of Italy in 1863, by the intervention of Michele Amari who was Minister of Education at the time.This collection is the largest in size with 6.641 pieces and gave its name to the museum
Edited sentence: The collection is the largest in size with 6.641 pieces and gave its name to the museum.The museum is composed in part of private collections purchased or donated to the museum over the centuries.The sale of the collection was prevented by the Kingdom of Italy in 1863, thanks to the intervention of Michele Amari who was Minister of Education at the time