An unwritten tradition whereby nominations for state-level federal judicial posts are usually not confirmed if they are opposed by a senator of the president's party from the state in which the nominee will serve is called

Senatorial Courtesy.

Explanation:

Based on the information provided within the question it can be said that the term being described is called Senatorial Courtesy. This (like mentioned int he question) is a political custom that describes the tendency that U.S. senators have in voting with other Senate colleagues in order to go against a presidential nominee. Which is what is described in the question.

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the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.

is there a year set? the question is incomplete