Telephone timeline: Choose the decade in which the telephone was invented. Context: Consider Bell's 1876 patent and early demonstrations. Choose the correct decade.

Difficulty: Easy

Correct Answer: 1870s

Explanation:


Given data

  • A. G. Bell received a telephone patent in 1876 and demonstrated speech transmission in the same decade.


Reasoning
Key invention and first workable devices → 1870s.


Final Answer
1870s.

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