President Abraham Lincoln led the Union of northern states in four years of civil war against the southern Confederacy.

VOA: special.2010.01.07

Randolph Roth studied homicide rates over the past four hundred years in parts of the United States and western Europe.

VOA: special.2009.12.19

They are depressed. Word expert Charles Funk says people have been feeling down in the dumps for more than four-hundred years.

VOA: special.2011.08.07

Archeologists know that the ancestors of today's Pueblo Indians lived in the Frijoles Canyon for more than four hundred years.

VOA: special.2010.07.05

For the past four years, Al Wiman has organized a monthly science cafe for the Saint Louis Science Center in Missouri.

VOA: special.2010.05.14

A Census Bureau official says four hundred billion dollars in grants and loans will be available over the next ten years.

VOA: special.2010.05.07

History records say that in only four years the area around Dawson produced more than fifty-one million dollars in gold.

VOA: special.2009.02.11

Scientists know that some of the Bristlecone pines in northern California are also more than four thousand years old.

VOA: special.2009.05.12

She was eighty-four years old. She was buried near the remains of her husband in the state of South Carolina.

VOA: special.2010.08.08

Much of the information came from observations made by thousands of volunteers in more than four thousand places over forty years.

VOA: special.2009.05.12

Four years ago, the labor agency estimated that more than twelve million people were in some form of forced labor.

VOA: special.2009.06.08

For the first time, Americans will be required to have health insurance or face a yearly fine starting in four years.

VOA: special.2010.03.24

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

VOA: special.2010.05.18

"Over just the last three years, NHTSAs defect and compliance investigations have resulted in five hundred twenty-four recalls involving twenty-three million vehicles.

VOA: special.2010.02.26

In the next four years, more than one-and-a-half-million cattle were moved north over the Chisholm trail to Kansas.

VOA: special.2010.03.18

Business was so good that a five thousand dollar investment in the cattle industry could make forty-five thousand dollars in four years.

VOA: special.2010.03.18

But regional carriers have had four in the last five years, while major airlines have had one.

VOA: special.2009.06.13

And he says his team has already identified two trillion dollars in reductions to help cut the deficit in half within four years.

VOA: special.2009.02.27

For the next four years, he worked mainly in Kansas City,Missouri, where jazz music had become popular.

VOA: special.2009.05.03