Who Put Forward This Theory?

1.	Who Put Forward This Theory?
Answer» In 1830 TWO german SCIENTISTS named Matthias and THEODOR Schumann. In 1830 two german scientists named Matthias and Theodor Schumann.

Answer»

In 1830 TWO german SCIENTISTS named Matthias and THEODOR Schumann.

In 1830 two german scientists named Matthias and Theodor Schumann.

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