No, it is technically false that <span>Hieroglyphics were the only written language used by Egyptians, although this form of writing was by far the most popular for the Ancient Egyptians. </span>
Banneker wrote a letter to Thomas Jefferson, who in 1776 had drafted the United States Declaration of Independence and in 1791 was serving as the United States Secretary of State
He might be sent to a mental institution because he is afraid and scared. He might have a medical condition or he might try to hurt himself to avoid whatever he went to trial for. People could also just think that he was crazy.