Simplify the following text for a Grade 7 native English-speaking person.
Original: Ã -- tzi the Iceman , Similaun Man , and Man from Hauslabjoch are modern names for a well-preserved natural mummy of a man who lived about 5,300 years ago .
Simplified: Ã -- tzi the Iceman is a well-preserved natural mummy of a man who lived about 5,300 years ago .