Answer: They all were historical figures that had to do with progression and rights of people (Thomas Campbell sorta fits this actually but eh) anyways I am not sure what the actual questions (assuming it is multiple choice is but) YOU COULD SAY THEY WERE ENLIGHTENMENT THINKERS OR SOMETHING ALONG THE LINES OF THEY WERE PROGRESSIVE THINKERS FOR THEIR TIMES.
Explanation:
By embalming the dead and then examining the remains
I think Copernicus did that.
Alright :) I'm glad you figured it out.
She got me by her side forever my lady life is like a dream
