Wireless milestones: Identify the decade of the first transatlantic radio broadcast. Full question: In which decade did the first successful transatlantic radio transmission occur (Marconi's signal across the Atlantic)? Choose the correct decade.

Difficulty: Easy

1900s
1890s
1910s
1920s

Correct Answer: 1900s

Explanation:

Given data

Event: First transatlantic radio transmission/broadcast.

Reasoning
Guglielmo Marconi received the first transatlantic radio signal (the Morse letter "S") in 1901, placing the milestone in the 1900s decade.

Verification/Context
Demonstrations continued in the early 1900s, establishing long-distance wireless communication well before regular voice broadcasts became common.

Final Answer
1900s.

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