"Justinian Code" is the "Collections of Laws and Legal Interpretations" developed under the sponsorship of the Byranztine Emperor "Jutinian" [ That's why it named after him] from time A.D. 529 to A.D.565
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It was the "First Continental Congress" that was formed after the passage of the Coercive (Intolerable) Acts, since these Acts represented somewhat of a "final straw" in terms of royal mistreatment of the colonists.
A popular model used to illustrate the concept of opportunity cost is called a. the production possibilities frontier.