In real life, Indy grew because it became the meeting point of a bunch of interstates [[65,69,70, and 74). Can you imagine the impact of that + the auto industry+flat land and no major water bodies in every direction? It would redefine sprawl. A huge city but completely auto-dependent, like a Midwestern Houston.
If the French had won the Seven Year's War, it would have completely changed world history. It's entirely possible that neither the American nor the French Revolutions would have happened. We might be living under a French King.
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