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Evaluate the function.
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20th Century
The 20th century spans from January 1, 1901, to December 31, 2000, characterized by unprecedented technological advancements, global conflicts, and significant social changes.
Communication
The act of conveying information, thoughts, and feelings through various means, including speech, writing, signals, or behavior.
Telephone
A communication device that transmits sound, particularly human voice, across distances using wire or radio technology.
United States
A country in North America comprising 50 states, known for its significant influence in global politics, economy, and culture.
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