More than one billion eight hundred million vehicles have used the bridge since it opened more than seventy years ago.

VOA: special.2010.07.23

Seventy-one bird species have disappeared forever since people first arrived on the Hawaiian Islands one thousand seven hundred years ago.

VOA: special.2009.05.12

Two years ago, scientists discovered more than one hundred corals in the Great Barrier Reef and on a reef near northwestern Australia.

VOA: special.2010.08.10

But it is enough to feel the excitement of those gold seekers more than one hundred years ago.

VOA: special.2009.02.11

So,just being able to pick one of those up will help our visitors understand how difficult portability was about thirty years ago."

VOA: special.2011.02.15

One hundred-fifty years ago today, President Abraham Lincoln approved an order for the services of seventy-five thousand militiamen.

VOA: special.2011.04.15

One northerner wrote: "It was said hundreds of years ago that a house divided against itself cannot stand.

VOA: special.2009.04.16

The report says not one country has met all the biodiversity targets that were set eight years ago.

VOA: special.2010.05.25

Fewer than one hundred thousand American troops are in Iraq for the first time since the invasion seven years ago next week.

VOA: special.2010.03.13

Many people visit Harpers Ferry to see a town that looks the same as it did more than one hundred fifty years ago.

VOA: special.2009.11.06

Homestake operated as a gold mine for one hundred twenty-five years before closing about nine years ago.

VOA: special.2009.07.21

Thomas Walsh had it built more than one hundred years ago as a home for his family.

VOA: special.2009.09.21

The researchers used the fossils of a dinosaur that lived one hundred twenty-five million years ago.

VOA: special.2010.03.16

He retired from that part of his life ten years ago, at the age of thirty-one.

VOA: special.2009.09.11

This was formed by two explosions of the Jemez volcano more than one million years ago.

VOA: special.2010.07.05