Problem: Please provide direct quotes from the video (no other outside sources) using time stamps to illustrate points when answering the questions. The direct quotes and time stamps from the video are important when answering these questions.
Please watch
History Channel's video "Engineering an Empire: Da Vinci's World"
Question: Give four ideas that were/are impressive in the Da Vinci's world
Please provide direct quotes from the video (no other outside sources) using time stamps to illustrate points when answering the questions. The direct quotes and time stamps from the video are important when answering these questions.