_________, Edison began experimenting with some thing which he had made himself. A.OnAugust12,1877B.InAugust12,1877C.At12August,1877D.In1877,August,12

_________, Edison began experimenting with some thing which he had made himself.

A.OnAugust12,1877

B.InAugust12,1877

C.At12August,1877

D.In1877,August,12


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