The researchers say they were able to store the vaccines for four months at forty-five degrees Celsius with no loss of quality.

VOA: special.2010.02.24

At forty-three he is Britain's youngest head of government since eighteen twelve.

VOA: special.2010.05.14

And at forty-five the rate is one in thirty.

VOA: special.2009.09.09

The researchers estimate that at least five hundred forty million people have the deficiency, about eight percent of the world.

VOA: special.2009.05.13

So,at the age of forty-seven she started to glue crushed colored glass in special designs on every surface in her house.

VOA: special.2010.04.14

The experts also say you must look at the picture as the American public saw it in nineteen forty-five.

VOA: special.2010.05.31

The United States entered the war in December of nineteen forty-one after Japanese planes attacked the Navy base at Pearl Harbor,Hawaii.

VOA: special.2009.03.02

In nineteen eleven, a fire at a clothing factory in New York had taken the lives of one hundred forty-six people.

VOA: special.2010.09.06

Louie Zamperini and pilot Russell Allen Phillips survived forty-seven days at sea before their raft washed up on an island.

VOA: special.2011.05.04

The official dedication did not take place until nineteen forty, when President Franklin Roosevelt spoke at a ceremony in the park.

VOA: special.2009.09.28

In nineteen forty-seven, he began to direct the Institute of Advanced Studies at Princeton University on the East Coast.

VOA: special.2009.06.14

At the end of the test flight,the speed of the Apollo spacecraft was increased to forty thousand kilometers an hour.

VOA: special.2009.07.08

It is music made for dancing. In nineteen forty-seven Celia started studying at the Cuban Conservatory of Music.

VOA: special.2009.04.19

The son of Thomas Mayhew established the first European settlement on the island in sixteen forty-two at Edgartown.

VOA: special.2011.07.25

This opera was first performed in nineteen forty-two at a center for Jewish children without parents in Prague,Czechoslovakia.

VOA: special.2009.10.05

So Benjamin Hooks enrolled at DePaul University in Chicago,Illinois, where he earned a law degree in nineteen forty-eight.

VOA: special.2010.04.24

The United States entered the Space Age in nineteen forty-five, at the end of World War Two.

VOA: special.2009.06.10

By the spring of nineteen forty-one, Europe had been at war for a year and a half.

VOA: special.2009.05.17

In nineteen forty-four, delegates from the United States, Britain,the Soviet Union and China met at Dumbarton Oaks.

VOA: special.2009.09.21

I have no work at all, although I am strong and healthy and only forty-five years old.

VOA: special.2010.05.13

The Hualapai Indian Tribe built the Skywalk at a cost of more than forty million dollars.

VOA: special.2009.10.07

On August fifth,nineteen forty-nine, he was involved in a disaster at a forest fire near Helena,Montana.

VOA: special.2009.11.24

Americans held nine hundred forty-six billion dollars in credit card debt at the end of March.

VOA: special.2009.05.22

The ancestors of these reefs were formed at least two hundred forty million years ago.

VOA: special.2010.08.10

One year at a private medical college can cost forty thousand dollars -- or more.

VOA: special.2010.07.13

The saxophonist died a year ago in a vehicle accident at the age of forty-six.

VOA: special.2009.08.28

In nineteen forty-seven, President Harry Truman spoke at a ceremony establishing the Everglades National Park.

VOA: special.2009.06.30