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.

Please check my history.

This area is mainly composed of conglomerate.