There are many differences and similarities between Matt and Attean and Crusoe and Friday.  Friday and Crusoe were good friends. Crusoe saved Fiday from people that ate their own kind.  He named him Friday because he saved him on that day.
    Matt and Atteans relationship was that they were good friends.  Attean was different than Matt because he ate animals and Matt ate regular food.  Another difference is that Matt was an American and Attean was an Indian.  Matt and Attean were people.  Cursoe and Friday were also humans.
    The difference between Crusoe and Friday is that Friday was a prisoner and Crusoe wasn't.  Those are some similarities and differences between the two.