During the 1840s, which speaker provided audiences with a firsthand account of enslavement?

indigenous people north and south were displaced, died of disease, and were killed by europeans through slavery, rxpe, and war. in 1491, about 145 million people lived in the western hemisphere. by 1691, the population of indigenous americans had declined by 90-95 percent, or by around 130 million people."

he sent troops to protect the students as they entered the school.