Answer:
maybe b
Explanation:
because the were busy that time to get everything back in shape like it was in the beginning before the problem started...maybe to help the part of the political system out I guess...
For Copernicus, I think it was On the Revolution of the Celestial Spheres. I think For Newton it was Philosophiæ Naturalis Principia Mathematica.
Between a parent and child
Answer:
ending violence against American Indians in the great plains
