Complex sentence: In 1997 he donated his collection, estimated at 80,000 objects, and the state-of-the-art museum to Florida International University, this was the basis for the Wolfsonian Museum-FIU, a research center and museum.
Split into simpler sentences: In 1997 he donated his collection, estimated at 80,000 objects, and the state-of-the-art museum to Florida International University. It was the basis for the Wolfsonian Museum-FIU, a research center and museum.