What is the common keyword for the World Heritage Site “Tomioka Silk Mill” and DIY? The hints are “Flemish Bond” and “English Bond”. In 2014, “Tomioka Silk Mill” in Tomioka City, Gunma Prefecture was registered as a World Heritage Site. At the end of Edo era when was immediately after opening the country, raw silk was Japan’s important product. In order to improve the quality of raw silk and its mass production, “Tomioka Silk Mill” was the machine filature factory established by Meiji government. At that time, it was the largest silk-reeling factory in the world. Its operation started in 1872. The management organization changed several times from the government […]