The ability to have cultivated food and not have to hunt for food.
Explanation:
The settling down of the populations from hunter gatherers to cultivators was one of the most important parts of human evolution as this was the time when humans began to have a very nutritious edit and more free time on their hands to innovate.
Because farming was developed, the people could focus more on innovation and not all people had to look for food constantly which led to increase in the betterment of technology.
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Answer: sending slaves to a colony on the west coast of Africa.
Explanation: Hope that helped
i think you mean antibiotic ... but Alexander Fleming was the one who advanced the antibiotic (world) and was responsible for creating these categories of medicine... this affected the 20th century because millions of people use antibiotics everyday and without them... many diseases would still affect people without a cure