Probably penicillin was the #1 development that changed how we fight bacterial infections.
To make infreences on the actions of people now and to know better why you speak of what.
cleanliness ( handwashing)
The inventions in the late 19th century changed the way people work is by making their lifes easier, For example: electricity, light bulbs made it safe to have then candles.
Well known historical people are venerable through selflessness in the ways they have changed America for the better.
The true historical context of the rifle in the United States begins around the time of the Civil War. It changed the distance people could shoot one another and wild game. This put more distance between people in war and in hunting. It fundamentally changed both.
'Historical' points are points earned before a major site update changed the way contributions were counted. The site describes them as "miscellaneous points from our older system".
They were changed because diseases came to Australia, so it decreased the population. Second the aboirigine ppl become more modernized
zombies were always a horror story but there are some diseases that made people think there were zombies due to the diseases killing people, altering skin color and sometimes even making skin fall off, but no real zombies that will actually try to eat you, just people that look like zombies
Everyone can get diseases not just black people.
Path dependency and contingent thinking
Yes. There are historical people everywhere.
People killing other people and drug cartels.