The Paleoarchean eon is a very old era in the history of the Earth.

The Mesoarchean eon is a part of Earth's history, which lasted from about 3 billion years ago to about 2.8 billion years ago.

The Archaean eon is the oldest era in the history of the Earth.

It is a very beautiful view.

I was amazed at his extraordinary talent.

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This old building tells the history of our town.

This old house is the one where my grandparents lived.

He is interested in the history of the past.

He is interested in the history of the past.