Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
Identify the following individual:

Lived: 129 - c. 216
Began a medical practice as a physician to gladiators and established a link between diet and health. Also created a flawed doctrine that dominated Western and Arab medicine for 1,500 years.
William Harvey
Galen
Galileo Galilei
John Nash