Discussion
For what does the world owe Almon Strowger a debt of gratitude?
Answer: C
For the automatic telephone exchange.
Almon Strowger, an undertaker in Kansas City, believed the local operator was diverting calls to a rival, and in 1891 patented a switch that let callers reach a number without a human intermediary. The Strowger step-by-step switch served exchanges for eighty years.
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