Historians believe the Maya people of Central America first learned to farm cacao plants around two thousand years ago.

VOA: special.2010.02.17

This area includes rock art made by people who lived there more than two thousand years ago.

VOA: special.2009.04.15

More than two thousand years ago, the Roman naturalist Pliny the Elder observed its harmful effects.

VOA: special.2009.11.17

That makes them about two thousand years older than the leather shoe found in Armenia.

VOA: special.2010.08.03

Cato the Elder, an influential Roman thinker two thousand years ago, praised its medical value.

VOA: special.2009.03.03

It was first developed in the Roman Empire about two thousand years ago.

VOA: special.2009.09.16

There are containers with beautiful artwork created more than two thousand years ago.

VOA: special.2010.02.03

People have used one opiate,opium, for pain for more than two thousand years.

VOA: special.2010.05.04

Experts say Polynesian people first sailed to Hawaii about two thousand years ago.

VOA: special.2009.03.02

People have used one opiate,opium,for pain for more than two thousand years.

VOA: special.2009.02.10

The story begins two thousand years ago with a willow tree.

VOA: special.2009.10.20

Modern paper-making began in China about two thousand years ago.

VOA: special.2009.07.06

But the history goes back more than two thousand years.

VOA: special.2009.12.21

People have grown chrysanthemums for more than two thousand years.

VOA: special.2010.06.29

The Temple of Dendur is over two thousand years old.

VOA: special.2010.08.04

The sculptures are over two thousand years old.

VOA: special.2010.06.23

The competition was first held in two thousand two and has taken place every two years since two thousand five.

VOA: special.2009.10.27

In two thousand two the group had suggested such screening tests every one to two years for women forty and older.

VOA: special.2009.11.18

But in two thousand four, after years of studying cancer, Anita Roberts learned that she herself had the disease.

VOA: special.2010.05.18

In nineteen eighty-three, he began to study more than twenty-two thousand healthy male doctors over forty years of age.

VOA: special.2009.10.20

And the Commerce Department reported that economic growth at the end of two thousand nine was the fastest in six years.

VOA: special.2010.01.30

During his thirty-six years in business, Red Adair and his crews battled more than two thousand fires all over the world.

VOA: special.2009.03.22

But ten years later, a similar accusation by another boy led to a criminal trial which began in two thousand five.

VOA: special.2009.07.05

In two-thousand three, American William Ruddiman first proposed that global warming resulted from human activities thousands of years ago.

VOA: special.2011.04.26

just before it dies. The ancient Greek philosopher Socrates talked of this two thousand three hundred years ago.

VOA: special.2010.04.11

They had three children and were together for nearly sixty-five years, until Betsy died in two thousand five.

VOA: special.2009.08.16

Africa had an estimated seventeen thousand white rhinos and four thousand black rhinos as of two years ago.

VOA: special.2009.12.14

Seven years later,in two thousand two, more than seven percent of the young people had signs of depression.

VOA: special.2009.02.11

Most historians believe that Etruscan society reached its height more than two thousand five hundred years ago.

VOA: special.2010.02.03