Answer:
The Nazis began experimenting with poison gas for the purpose of mass murder in late 1939 with the killing of patients with mental and physical disabilities in the Euthanasia Program.
Slaves were considered property. Their owners wanted to restrict their freedom so they wouldn't be as likely to escape.
Before Gettysburg, most major Civil War battles in the East
were won by the Union military.involved General Robert E. Lee.were fought on Confederate soil.<span>involved General Ulysses S. Grant.</span>