Johnson announced that he would not run for a reelection, and that's when Humphrey decided to run, launching his campaign for presidency right after. Considering that he was loyal to Johnson's administration policies considering the Vietnam War, his own party disliked the idea of him running and they opposed to it, since they disagreed on how Johnson was dealing with it all.
With the age of enlightenment, people started educating themselves more so naturally there were many more doctors that were educated people. The practice of having spiritual people to heal you with pseudomedicine started going down. People started discovering things that helped medicine develop. Women played a part because they started working in the medical field like nurses, they would deliver children, or even learn how to help people themselves.
Mercantilism: colonies provide the"mother country" both raw materials for production and markets to sell goods
Important long term contributions of ancient greek and roman civilizations are primarily found in the area of "politics and government," since they were Republics in which people were represented in government.