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49th Parallel

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AP Human Geography

Definition

The 49th Parallel is a line of latitude that serves as a significant political boundary, primarily demarcating the border between Canada and the United States from the Great Lakes to the Pacific Ocean. This boundary was established through treaties and negotiations in the 19th century, symbolizing peaceful resolution over territorial disputes and the importance of geographic coordinates in defining political borders.

5 Must Know Facts For Your Next Test

  1. The 49th Parallel extends across North America and was defined as the boundary line through both the Treaty of Paris in 1783 and the Oregon Treaty in 1846.
  2. The decision to use the 49th Parallel was influenced by geographical features, making it a practical choice for a long boundary line.
  3. The border created by the 49th Parallel is one of the longest unfortified borders in the world, reflecting peaceful relations between Canada and the United States.
  4. Although primarily defined along the 49th Parallel, adjustments were made for specific areas like Vancouver Island, showcasing how political negotiations can adapt to geography.
  5. The 49th Parallel has become a cultural symbol representing North Americaโ€™s division between two nations with shared history and values.

Review Questions

  • How did historical treaties shape the establishment of the 49th Parallel as a political boundary?
    • Historical treaties like the Treaty of Ghent and the Oregon Treaty played crucial roles in establishing the 49th Parallel. The Treaty of Ghent resolved issues from the War of 1812 and laid groundwork for future border definitions, while the Oregon Treaty specifically delineated this parallel as a dividing line in 1846. These agreements not only defined territorial claims but also emphasized diplomacy over conflict in shaping modern borders.
  • Discuss how geographic features influenced the decision to use the 49th Parallel as a border between Canada and the United States.
    • Geographic features greatly influenced the selection of the 49th Parallel for the border. The line runs through areas with fewer natural barriers compared to other potential boundaries, making it easier to define and manage. Additionally, using latitude allowed for a more straightforward demarcation that reflected both countries' interests while minimizing territorial disputes in vast, less populated regions.
  • Evaluate how the establishment of the 49th Parallel has impacted U.S.-Canada relations in terms of governance and trade.
    • The establishment of the 49th Parallel has significantly influenced U.S.-Canada relations by fostering an environment of cooperation and shared governance. This well-defined border has led to successful trade agreements and collaborations on issues like environmental protection and security. By maintaining a peaceful boundary, both nations have been able to prioritize economic partnerships and cultural exchanges, contributing to their longstanding friendship.
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