Over the next 200 years, scientist became more interested in finding new elements. Scientists also became interested in their compounds. (13 h 27 m, 9 ene 1649 año – 3 h 56 m, 15 sept 1849 año)
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13 h 27 m, 9 ene 1649 año
3 h 56 m, 15 sept 1849 año
~ 200 years