I had been living in Japan for a year before I got the idea to look up whose portraits were on the banknotes I was handling every day. In the United States, the faces of presidents and statesmen adorn our currency. So I was surprised to learn that the mustachioed man on the ¥1,000 note with which I purchased my daily bento box was a bacteriologist. It was a pleasant surprise, though. It seems to me that a society that esteems bacteriologists over politicians is in many ways a healthy one. 

But it was the lofty gaze of the man on the ¥10,000 note that really caught my attention. I find that always having a spare ¥10,000 note is something of a necessity in Japan. You never know when you might stumble upon a pop-up artisanal sake kiosk beside a metro station staircase that only accepts cash and only opens one day a year. So over the course of my time in Japan I had come to know the face of the man on that bill rather well. 

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