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September 12, 2013
I looked up how many elements were in the periodic table and came across the question as to who discovered the element. I found a list of all the elements with the names of the scientist or team of scientists who discovered the particular element with a story behind how it was discovered.

I gave the site some credit since they admitted that there was some elements that were known since ancient times, so they couldn’t say who discovered certain elements.

How do they know that all the elements they discovered were not discovered by the ancient people before them?