In Japan, there is a tradition of eating KFC for Christmas dinner, which started as a marketing campaign in the 1970s.
The 3D printing technology, developed by Dainippon Screen in the 1980s, has revolutionized manufacturing and made it possible to create complex objects with ease.
The karaoke machine, which was invented by Daisuke Inoue in 1971, has become a popular form of entertainment worldwide.
