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  3. APUSH - Manifest Destiny & Westward Expansion

apush - manifest destiny & westward expansion

originally streamed in 2018 with Tom RicheyTeacher
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Learn the ideology, events, and impacts of Manifest Destiny in this APUSH review. This video covers westward expansion from the 1840s, including the Mexican-American War, Oregon Territory, Texas annexation, and how territorial growth intensified slav ...more

covered in this stream

units
Unit 4 – American Expansion, 1800–1848Unit 5 – Civil War and Reconstruction, 1848–1877
topics
4.4 America on the World Stage5.2 Manifest Destiny5.3 The Mexican–American War5.5 Sectional Conflict5.6 Failure of Compromise5.7 Election of 1860 and Secession5.4 The Compromise of 1850

timestamps

  • 0:00

    Monroe Doctrine Context

  • 0:30

    Latin American Revolutions

  • 1:02

    Post-War of 1812 Disengagement

  • 1:33

    Recognizing Independent States

  • 2:35

    British Support and Legacy

  • 3:36

    Roosevelt Corollary

  • 4:07

    Manifest Destiny Introduction

  • 5:10

    Defining Manifest Destiny

  • 6:12

    Jefferson and Expansion

  • 7:47

    Divine Providence Quote

  • 8:48

    Texas War for Independence

  • 9:51

    Annexation Debate

  • 10:55

    Slave-Free State Balance

  • 12:27

    Push for Westward Expansion

  • 13:30

    1844 Election Polk vs Clay

  • 15:35

    Mexican War Overview

  • 16:08

    Oregon Treaty Settlement

  • 17:11

    Treaty of Guadalupe Hidalgo

  • 18:46

    54 40 or Fight Compromise

  • 19:16

    Q&A Session Begins

  • 21:55

    Polk's Election and Ideas

  • 24:00

    1844 Democratic Convention

  • 28:13

    Foreign Policy Impact

  • 30:16

    1860s Compromises Question

  • 30:47

    Lincoln's Role in Victory

  • 33:20

    Polk and Manifest Destiny

  • 34:22

    Leading to Civil War

  • 37:28

    Crittenden Compromise

  • 41:04

    Homestead Act 1862

  • 43:40

    Douglas and Dred Scott

  • 46:48

    Freeport Doctrine

  • 48:22

    Civil War Inevitability

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Study Content & Tools

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Company

What's New?PricingBulk DiscountsTestimonialsFAQsEmail us

Resources

AP Exam Schedule 2027AP ClassesAP ClassroomEasiest AP ClassesHardest AP ClassesAP vs IBAP vs Dual EnrollmentAP vs Honors ClassesAP Scholar Awards

history

🌎 ap world history🇺🇸 ap us history🇪🇺 ap european history

social science

✊🏿 ap african american studies🗳️ ap comparative government🚜 ap human geography💶 ap macroeconomics🤑 ap microeconomics🧠 ap psychology👩🏾‍⚖️ ap us government

english & capstone

✍🏽 ap english language📚 ap english literature🔍 ap research💬 ap seminar

arts

🎨 ap art & design🖼️ ap art history🎵 ap music theory

science

🧬 ap biology🧪 ap chemistry♻️ ap environmental science🎡 ap physics 1🧲 ap physics 2💡 ap physics c: e&m⚙️ ap physics c: mechanics

math & computer science

🧮 ap calculus ab♾️ ap calculus bc📐 ap precalculus📊 ap statistics💻 ap computer science a⌨️ ap computer science p

world languages

🇨🇳 ap chinese🇫🇷 ap french🇩🇪 ap german🇮🇹 ap italian🇯🇵 ap japanese🏛️ ap latin🇪🇸 ap spanish language💃🏽 ap spanish literature

go beyond AP

high school exams

✏️ PSAT🎓 Digital SAT🎒 ACT

honors classes

🍬 honors algebra II🫀 honors anatomy🐇 honors biology👩🏽‍🔬 honors chemistry💲 honors economics📐 honors geometry⚾️ honors physics📏 honors pre-calculus📊 honors statistics🗳️ honors us government🇺🇸 honors us history🌎 honors world history

college classes

👩🏽‍🎤 arts👔 business🎤 communications🏗️ engineering📓 humanities➗ math🧑🏽‍🔬 science💶 social science

hs classes

🏛️ alabama history⛰️ appalachian studies🌴 california history🌍 earth science🌐 ethnic studies🐊 florida history🍑 georgia history🌎 global studies🌺 hawaiian studies📰 journalism🪶 native american studies🌵 new mexico history🤠 oklahoma history⚗️ physical science🎙️ speech and debate🤝 texas government🤠 texas history🌲 washington state history🕊️ world religions
RefundsTermsPrivacyCCPAAI TransparencySchool Data Privacy

© 2026 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.