I was born in 1970, so it seems we can roughly date the origin of this interesting natural phenomenon.

Such documents can be roughly dated from their physical and scribal characteristics.

One way to roughly date a particular dispenser is to check the patent number molded on its side.

That period, which dates roughly from the start of the bull market, saw the Standard & Poor's 500-stock index rise 242 percent.

But the code on file there dates roughly from 1994, and searching for appeals is somewhat awkward.

Romantic Science can be dated roughly, and certainly symbolically, between two celebrated voyages of exploration.

It dates roughly to the 13th century.

Group A is a hilltop complex roughly dating to the early Classic Period.

Dated roughly from 919-1067 C.E., this vast structure consists of over 800 rooms that took 150 years to construct.

The birth of audio - as distinct from mass-market radios and phonographs - may be dated roughly to 1937.