これが古代の法です。の英語

This is an ancient law.

It is an old tradition.

It has been the custom time out of mind―from time immemorial.

It is an old custom―a time-honoured custom.

This is the same as traditional ways of thought.

This is a flavor from the old days.

It has been a custom since the Edo era.

This is a culture dating prior to the Edo period.

It is an old practice.

It's a custom of long standing.

in ancient times

This custom is a relic of barbaric times [the age of barbarism].

This custom dates from ancient times.

The custom is a survival from the past.

This custom dates from the Edo period.

The custom took its origin in the days of our fathers.

This is a family tradition.

antique

This is an example of nature worship by ancient people.

in antiquity

This custom became extinct a long time ago.

Old traditions are crumbling away.

Such is the custom of the people here.

That old tradition has disappeared.

the wisdom of the ancients

This parade descends from an ancient rite.

We did so after an old custom.

This has been identified for a long time.

early man

in ancient times