The Treaty of Tordesillas: How It Best Facilitated Exploration
The Treaty of Tordesillas—signed in 1494 between Spain and Portugal—was a key diplomatic accord that reshaped the map of the New World and greatly facilitated European exploration. In real terms, by establishing a longitudinal demarcation line, the treaty granted each nation a clear sphere of influence, reducing conflict and encouraging investment in voyages of discovery. Understanding how this agreement spurred exploration requires a look at its historical context, the practical mechanisms it created, and the lasting impact on global navigation, colonization, and trade.
Introduction: Why the Treaty Matters in the Age of Discovery
During the late 15th century, the Age of Discovery was driven by a mix of religious zeal, economic ambition, and technological breakthroughs such as the astrolabe and the caravel. Yet, the competition between Spain and Portugal threatened to turn the race for new lands into a costly war. The Treaty of Tordesillas, brokered by Pope Alexander VI, introduced a **
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