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

The digital camera, co-invented by Fujifilm and Olympus in the 1980s, has made photography more accessible and convenient for the average person.