The pocket calculator, invented by Sharp in the 1970s, made complex calculations more accessible and convenient for the average person.

The Taisho period, which lasted from 1912 to 1926, was marked by political instability and social change, including the rise of labor unions and women's rights movements.

Kobe is a port city on Japan's western coast, and is known for its beef, hot springs, and scenic views of the sea and mountains.