Answer:
Sigmund Freud
Explanation:
Sigmund Freud (writing between the 1890s and the 1930s) developed a collection of theories which have formed the basis of the psychodynamic approach to psychology.
Unrestricted submarine warfare
They didnt invent the astrolabe!
I believe the best answer for this would be D
Explanation: The Mandate of Heaven did not require a ruler to be of noble birth, and had no time limitations. Instead, rulers were expected to be good and just in order to keep the Mandate. The Zhou claimed that their rule was justified by the Mandate of Heaven. In other words, the Zhou believed that the Shang kings had become immoral with their excessive drinking, luxuriant living, and cruelty, and so had lost their mandate.
the medieval knightly system with its religious, moral, and social code.
courteous behavior, especially that of a man toward women.