What is the conflict between sparta and athens ?

Well there were many conflicts between what is considered Greece's most important city-states. The one you are probably referencing is the Peloponnesian War, the war fought between Sparta and Athens.

both are monotheistic however, christians believe jesus is the savior and jews believe jesus is just another prophet.

explanation:

it is due to the halo effect as the impression of the boy created earlier.on the mind of the principle affected his decision