The answer to this question can be quite subjective. Some people will say that the telephone is the most important invention, or the automobile, or the plane, but for me personally, I'd choose antibiotics.
It is a modern-day invention (as opposed to the Middle Ages, for example) which changed our lives for the better. Before penicillin was discovered in the 1920s by Alexander Fleming, people were constantly dying because of most harmless diseases. But after antibiotics were invented, people were given a chance to recover from their illnesses much more easily.
Although Portugal was the first to use African slaves, Spain first sent them to America
Answer:
Is there a multiple answer list you can give me to better understand
Explanation:
After World War I the Senate rejected the Treaty of Versailles which was mainly based on the idea that the Treaty would require the United States to join the League of Nations and may have resulted to a loss of the United States sovereignty. The treaty would also force the United States to get involved in issues that were of less relevance to the U.S. The League of Nations was created as a body to prevent future conflicts by establishing a body to settle disputes between nations and authorize action against the Nation that did not comply. Some Senate members wanted to change the Versailles Treaty, i.e., Henry Cabot Lodge but president Wilson dismissed and disliked his suggestions.