The Tuskegee Airmen were the first black military aviators in the U.S. Army Air Corps (AAC), a precursor of the U.S. Air Force. Trained at the Tuskegee Army Air Field in Alabama, they flew more than 15,000 individual sorties in Europe and North Africa during World War II.
The north was more urban, while the south was more rural.
Southern States were free states; Northern states were slave States.
Building a space ship and flying to the moon then landing safely on earth.
The reason why is you had to build a giant spaceship and make sure it works along with making suits that would protect yourself from the cold on the moon and providing oxygen.