A secondary source is a experience heard by a primary. pick the one using this definition
Answer: They created a strong, unified Muslim kingdom with Cordoba as its capital.
Explanation:The revival of the Umayyad Caliphate in Al-Andalus (what would become modern Spain) was called the Caliphate of Córdoba, which lasted until 1031. The period was characterized by an expansion of trade and culture, and saw the construction of masterpieces of al-Andalus architecture.
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An advantage of local governments is that they are able to adapt to local needs and react more quickly to local problems than a central government could, & it is more likely to be more efficient to run services locally then manage them from the center.