The Neolithic was an important period in human history.

The Paleolithic is the first era of human history.

The Phanerozoic eon is the most recent era in the history of the Earth.

I love Japan.

Ancient Japan was a place where beautiful nature and culture merged.

I live in Japan.

His presence dominated the entire room.

The Phanerozoic eon is the most recent eon in the history of the Earth.

Plutocracy is creating social inequality.

My friend came from South Pyongan.