The digital watch, invented by Seiko in the 1970s, revolutionized the way people tell time and made watches more convenient and accurate.

The Kamakura period, which lasted from the 12th to the 14th century, was a time of political upheaval and marked the rise of the shogunate.

The Walkman, invented by Sony in 1979, revolutionized personal music listening by allowing users to listen to music on the go.