New evidence suggests that many of Leonardo da Vinci's ideas can be traced to other scientists as far back as 1700 years. This film was used as the S16E5 episode of the PBS TV series Secrets of the Dead broadcast on 2017/04/05.
Did Leonardo da Vinci come up with all of his ideas and inventions by himself or did he also borrow some of them from ancient scientists including those who lived 1,700 years before him.