Answer:
Because countries who practiced Christianity were traveling the world colonizing different areas and passing on their religion. Remember the 3 G's: God, Gold, and Glory.
Well since there is no list I would have to go with Gregor Mendel.
The Confucian ideal regarding families in China was filial piety which was respect for one's elder family members.
To show the American people the Kennedy's family did not hold any ill will