who designed the prototype for the katana: The Brutal Honest Review
It remains unclear who exactly designed the prototype for the katana, with multiple theories and historical accounts attributing its creation to various swordsmiths and artisans. Some sources suggest that Amakuni, a legendary swordsmith from the Nara period (710-794), may have played a significant role in its early development. However, definitive evidence remains elusive, making it challenging to pinpoint a single individual as the sole creator of the katana’s prototype.