He made a round of visits to historical places in Japan.

We use the solar calendar.

He suffered from scrofula when he was young.

This mountain is mainly composed of conglomerate.

The Horeki era was an important period in Japanese history.

I check the date using the Japanese calendar.

In Japan, they used to use a lunar calendar.

I bought a new calendar.

He is interested in history.

We are currently using the Gregorian calendar.