The sentence "[T]he Europeans did not invent globalization." fits best at option 3 within the paragraph. Here's the reasoning:
The paragraph discusses the early phase of globalization, highlighting exchanges and commercial activities around the year 1000, particularly those involving Chinese consumers and Southeast Asian economies. The text contrasts the year 1000 with 1492, noting key differences and developments that followed.
The correct position for the sentence should logically connect the discussion of pre-existing global interactions with the role Europeans played post-1492. Placing it at option 3 smoothly bridges the ideas that while Europeans were significant in altering global trade post-1492, they did not start the globalization process itself.
Thus, the paragraph flows more cohesively, acknowledging the longstanding nature of global exchanges and dispelling the notion of European primacy in its inception.