Why did the United States have racial discrimination for more than 100 years under the same declaration of independence?

There was no America at first, and North America was originally inhabited by Indians. Later, Columbus discovered America, and slaves were sold from Africa, which is the ancestor of most black Americans now. 1776 On July 4th, George Washington, as Commander-in-Chief, adopted the Declaration of Independence, officially announcing the establishment of the United States of America. Later, after the liberation of blacks in the civil war, white people were still uncomfortable and refused to accept it. Because white people were originally handed down by European nobles. ? Now Americans are all immigrants, and only Indians are native speakers, so racial discrimination in the United States is the strongest.

This is a legacy of American history. Although Lincoln abolished black slavery in the Civil War, it was not completely. The black image in their hearts is still the same as the "slave" in triangle trade. 2/kloc-today, the problem has not been diluted by history, so there will still be racial discrimination in the United States! !

North America was originally inhabited by Indians. /kloc-at the end of 0/5, Spain, the Netherlands and other countries began to immigrate here, and Britain came from behind. 1773, Britain has established 13 colonies. 1775, the American people's war of independence against the British colonists broke out. 1776 On July 4th, the Second Continental Congress was held in Philadelphia, with George Washington as the commander-in-chief, and adopted the Declaration of Independence, officially announcing the establishment of the United States of America. On 1788 after the War of Independence, George Washington was elected as the first president of the United States. After the Civil War, the American capitalist economy rose rapidly. /kloc-at the beginning of the 0/9th century, the United States began to expand abroad and experienced World War II. After World War II, the United States has greatly increased its national strength and is the only hegemonic superpower in the world today [2].