The Mesolithic is the era between the Paleolithic and the Neolithic.

The Azuchi-Momoyama period, also known as the Oda-Nobunaga period, was a very important time in Japanese history.

The Azuchi-Momoyama period was a very important time in Japanese history.

The history of the Empire of Japan is very interesting.

The event horizon is a part of a black hole, referring to the region from which even light cannot escape.

This box is perfectly square in shape.

This square box is very simple and beautiful.

This new song will be released as a double A-side single.

His words were like water off a duck's back to her.

I saw a swan goose in the park.