This is called track history, and this extends back for a brief span of time.

The timespan for underwater objects may extend back a week or more.

The commune has a history extending back some 2,000 years.

Victory Junior had a dollhouse, a huge thing that extended back a little way into the ferns.

If possible, let the feet extend back a bit over the body toward the head, but do not let the knees bend.

It possessed a delightful stone facade that even extended back a dozen feet on each side.

My father, whose line extends back a thousand years, is called landowner.

These friendships extend back some 60 years, and these women are just like my mother.

The rivalry between the two states, extending back before the Civil War, never quite died.

Those people have a trauma that may extend back an hour.