They are directly listed in the Constitution. Delegated powers are specifically granted to the federal government. This includes the power to coin money, to regulate commerce, to declare war, to raise and maintain armed forces, and to establish a Post Office.
Simon Bolivar was a revolutionary, born in Venezuela, who liberated 6 countries in northern South America from Spanish forces sent by the then king of Spain, Bolivar traveled to Europe to ask Spain to withdraw its military forces from America, stop repressing the people and taking advantage of their wealth, but they ignored him, then he returned to South America from where he undertook a battle to free the countries, achieving the objetives and winning almost all of the fights.
5 people died from the Boston Massacre.
Six were injured.