Eureka! · No. 5

A town puzzle that built a whole new kind of math

작은 마을 퍼즐이 만들어낸 완전히 새로운 수학

Leonhard Euler · 레온하르트 오일러 — Königsberg, Prussia, 1736 CE

💡 The Idea

Euler replaced the map of Königsberg with an abstract diagram: four dots (the land areas) connected by seven lines (the bridges).

📚 Grammar focus

Modals (can / could / must)

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