Akita is a city located in northern Japan, and is known for its beautiful natural scenery, traditional festivals, and sake.

The 16th century saw the rise of Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu, who were instrumental in unifying Japan under a centralized government.

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