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The Door Switch Mystery
Traditional Japanese house doors generally open inward, while modern apartment doors usually open outward. Why?
Traditional Japanese house doors generally open inward, while modern apartment doors usually open outward. Why?

In ancient China, the buttons of aristocratic women were generally sewn on the right hand side, while the buttons of civilian women were generally sewn on the left hand side. Why?
In ancient China, the buttons of aristocratic women were generally sewn on the right hand side, while the buttons of civilian women were generally sewn on the left hand side. Why?