Starting about 3 million years ago a series of glaciations further modified the area by accelerating the erosion.

Anxiety disorders usually started at age 9, and about three years before the pattern of stomachaches began.

The second half of the story starts about fifteen years after the conclusion of the first half.

Construction would then start and last about two years, he said.

American hovercars are designed to start falling apart, or being out of style, after 30,000 miles, or about three years.

It started about twenty years after we left Earth on the Marilee.

However, he took evening classes in some subjects, and started part-time work about three and a half years after the accident.

The whole mess started about two years before you came, Alex, in '46 or so.

Planning for each new Hess design starts about three years before the release date.

He started it about six years before his death and was doing it as a kind of exercise between projects to keep himself occupied.