What law compelled the North to return runaway slaves back to the South?

The Fugitive Slave Act or Fugitive Slave Law was passed by the United States Congress on September 18, 1850, as part of the Compromise of 1850 between Southern slave-holding interests and Northern Free-Soilers .

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the answer is b for brother

mustafa ataturk thought nationalism in turkey would best be achieved by modernizing the country.