| If it is argued that these mirrors were produced after 280, it is difficult to understand why the era inscribed in them was between 235 and 244 during the Three Kingdom Period (China). |
これらを280年以降の製造と考えると、紀年鏡に記される年号が何ゆえに三国時代 (中国)の235年から244年に集中しているのか、整合的な理解が難しい。 |