In nineteen seventy-five, much of the Dolly Sods area became part of the National Wilderness Preservation System.

VOA: special.2009.07.20

More than two thousand people between the ages of forty-five and eighty took part in the study.

VOA: special.2009.04.08

More than ten thousand students and more than five hundred robots took part in the competition.

VOA: special.2009.04.24

The deepest part of the mine is nearly two thousand five hundred meters below ground.

VOA: special.2009.07.21

In nineteen ninety-five, he was part of an effort to recover the Fitzgerald's bell.

VOA: special.2009.11.11

Another part of the plan is expected to cost seventy-five billion.

VOA: special.2009.02.20

He arrived in Naypyidaw from Laos, as part of a five-nation tour of Asia as the chairman of the Senate subcommittee on East Asian and Pacific Affairs.

VOA: standard.2009.08.14