The ruler of which muslim empire created an enormous legal code for his empire?

The answer is:  

          →     " the Ottoman Empire  " .

Note:  

    " Suleyman the Lawgiver, who was the ruler of a [Muslim empire known as the Ottoman Empire ] , created an 'enormous legal code' for his empire. "

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nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.