What events occurred during independence of mexico

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Explanation:

On August 24, 1821, Spanish Viceroy Juan de O'Donojú signed the Treaty of Córdoba, which approves a plan to make Mexico an independent constitutional monarchy. In 1822, as no Bourbon monarch to rule Mexico had been found, Iturbide was proclaimed the emperor of Mexico.

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

the supreme court can hear any case it wishes as long as four justices agree to hear it.

hope this , give me brainliest answer =j