The World Health Organization says the United States has forty-one births for every one thousand girls age fifteen to nineteen.

VOA: special.2010.05.13

In nineteen fifty-one, Navy Admiral Hyman Rickover urged the United States Congress to provide money for the first nuclear-powered submarine.

VOA: special.2010.06.11

For example, in nineteen twenty-one, a Swiss doctor, Walter Morgenthaler published a book about the art of his patient, Adolf Wolfli.

VOA: special.2010.04.14

The National Association of Colleges and Employers says about one-fourth of those who applied for a job have found one.

VOA: special.2010.06.11

But in cases with a known cause the experts say salmonella is responsible for more than one-third of hospitalizations.

VOA: special.2011.01.11

Les Paul is best known for creating one of the first solid-body electric guitars and the eight-track recording device.

VOA: special.2009.09.27

New irrigation methods are expected to double wheat production while using one-third of the water required for full irrigation.

VOA: special.2010.02.08

The United States had sent an astronaut of its own into space for the first time in nineteen sixty-one.

VOA: special.2009.07.08

And they got meaningful on-the-job training for what is quickly becoming one of the fastest growing careers of the future.

VOA: special.2009.09.04

The goal is to reduce monthly payments for five years to no more than thirty-one percent of the borrower's monthly income.

VOA: special.2009.02.20

One is the long-distance transport of bees for pollination and the spread of bee diseases from one area to another.

VOA: special.2011.05.24

And something did. The following winter, the winter of eighteen fifty-one, is still remembered for the heavy snows in the mountains.

VOA: special.2009.06.06

All fifty states require at least one year of hospital work for doctors-in-training educated at medical schools in the United States.

VOA: special.2010.07.13

"Probably,for a one-hundred-fifty-thousand-dollar- a-year employee it would cost me in the range of ten to fifteen thousand dollars."

VOA: special.2011.05.13