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The Curvature Question: Why Japanese Swords Bent While Tang Blades Stayed Straight
The claim that Japanese swords originated from China’s Tang Dynasty blades (唐刀) is both historically grounded and culturally oversimplified. While early Japanese swords (chokutō) indeed mirrored the straight, single-edged design of Tang hengdao (横刀), their evolution into the iconic curved katana reflects a confluence of battlefield pragmatism, metallurgical innovation, and cultural identity—diverging sharply from China’s...
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