FDR had tried to pass legislation that would let him add up to six more justices. This was because the court had struck down some of his New Deal legislation and so he wanted more power. As shown though with the theory of separation of powers, it would have to go through Congress, who refused to allow the clause that let him "pack the courts" and as a result only reform for lower courts was passed and FDR failed in his main goals, but over his twelve years still appointed most of the justices that were on the court by the time his tenure as president ended.
The location of the Arabia was such that it was able to connect to Africa, Asia and the Mediterranean areas. This allows the spread of culture, people, goods, ideas, etc from Arabia to the other areas they are connected to and vice versa. This played an important role in the expansion of the Arabia Empire especially in term of spread of trade and culture.
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Samurai were employed by feudal lords (daimyo) to defend their territories against rivals, to fight enemies identified by the government, and battle with hostile tribes and bandits. For this reason, samurai could live in barracks, in a castle or in their own private homes.