Which education level has the highest return on investment (ROD)

After the attacks of september 11, 2001, the united states demanded that

War of 1812 allowed the us to take control of lake erie

Match each person with his contribution. aristotle socrates eratosthenes hippocrates he studied the causes of illnesses in search of cures. he created a teaching method that involved asking questions. he determined that earth was round. he educated alexander the great.