April 15 (UPI) -- On this date in history: In 1817, the oldest, permanent U.S. public school for the deaf, Connecticut Asylum for the Education and Instruction of Deaf and Dumb Persons (now the American School for the Deaf), was founded at Hartford, Conn. In 1865, U.S. President Abraham Lincoln died of an assassin's bullet fired the night before at Ford's Theatre in Washington. Vice President Andrew Johnson was sworn in as chief executive. In 1912, the luxury liner Titanic sank in the northern