Formed from land donated by the states of Maryland and Virginia, the initial shape of the federal district was a square measuring 10 miles (16 km) on each side, totaling 100 square miles (259 km2).
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The answer is African Americans because they are likely to engage to activities that will lead them to have a stroke and by that, the incidence of stroke is high among them. Stroke occurs when the brain lacks oxygen and nutrients that causes an individual's brain cells to die.