People moved into the American Southwest more than ten thousand years ago as the last ice age was ending.

VOA: special.2010.07.05

Many years ago, a young man named Giovanni Guasconti left his home in Naples to study in northern Italy.

VOA: special.2011.01.29

The Roman historian Pliny said that Phoenician sailors accidentally discovered how to make glass over three thousand years ago.

VOA: special.2009.09.16

In South Korea, President Obama and President Lee Myung-bak discussed a free trade agreement signed by their governments two years ago.

VOA: special.2009.11.21

Now, a group of research scientists says it has found evidence of a similar event that happened about 13,000 years ago.

VOA: special.2009.01.20

It has high mountains. It has valleys formed by ancient ice that cut deep into the Earth millions of years ago.

VOA: special.2009.01.07

The story of the Sierra Nevada Mountains and the area that is Yosemite National Park begins about 500 million years ago.

VOA: special.2009.01.07

It is a very old expression. Hot water was used five hundred years ago to mean being in trouble.

VOA: special.2009.05.10

Rates of breast cancer in Japan, Singapore and South Korea are now three times what they were forty years ago.

VOA: special.2009.03.02

He was sworn-in as president seventy-six years ago during the Great Depression -- the worst economic crisis in the country's history.

VOA: special.2009.05.02

Well,experts say the expression appears to have been first used in the United States more than one hundred years ago.

VOA: special.2010.01.17

The famous Furnace Creek Inn is a beautiful hotel that was built of stone more than seventy-five years ago.

VOA: special.2011.08.03

"I thought she was Azalea Adair." "She was." the doctor answered, "until she married Wentworth Caswell twenty years ago.

VOA: special.2010.06.12

Its long history almost came to an end two years ago when a major fire burned its South Hall building.

VOA: special.2009.08.21