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AP US History
Unit 8 – The Postwar Period and Cold War, 1945–1980
Topic 8.1
Which technological innovation was crucial for westward expansion in mid-19th-century America?
Transcontinental Railroad
Telephone
Television
Electric light bulb
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AP US History - 8.1 Context: U.S. as a Global Leader
Key terms
Westward Expansion
Mid-19th-century America
Technological Innovation
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About Fiveable
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Careers
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Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
Request a Feature
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© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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