Her mouth is set firmly. On December first, nineteen fifty-five, Rosa Parks took a seat on a city bus in Montgomery,Alabama.

VOA: special.2010.04.16

The research company IDC says fifty-five million smartphones were sold worldwide in the first three months of this year.

VOA: special.2010.06.22

On May twenty-ninth, nineteen fifty-three, Edmund Hillary and Tenzing Norgay became the first climbers known to reach the summit of Everest.

VOA: special.2010.06.30

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

In his first observations from Mount Wilson, Hubble used a telescope with a mirror one hundred fifty-two centimeters across.

VOA: special.2009.04.29

Organizers said the two-hour broadcast raised more than fifty-seven million dollars in the first day through telephone, online and text.

VOA: special.2010.02.01

The first recorded shooting incident by a person who was a professional gunman took place in Texas in eighteen fifty-four.

VOA: special.2010.03.17

On December first, nineteen fifty-five, in the southern city of Montgomery,Alabama, a forty-two year old black woman got on a city bus.

VOA: special.2009.03.08

The nineteen fifty-nine album "Time Out" by the Dave Brubeck Quartet was the first jazz album to sell more than one million copies.

VOA: special.2009.11.30

In eighteen fifty-five, the first canal connecting Lake Superior with Lake Huron was completed at Sault Ste.Marie,Michigan.

VOA: special.2009.11.11

He was thirty-six years old when he published his first book of poetry in eighteen fifty-five.

VOA: special.2009.04.12

His three-point, lap and shoulder seat belt first appeared on cars in Europe fifty years ago.

VOA: special.2010.02.09

The doll first appeared at the toy fair in New York on March ninth, nineteen fifty-nine.

VOA: special.2009.04.06

They worked quickly to catch up. Less than a year later, on October first,nineteen fifty-eight, the National Aeronautic and Space Administration,or NASA, began operations.

VOA: special.2010.08.20

Nineteen fifty-three was the first year that the awards ceremony was broadcast on national television.

VOA: special.2009.02.20

The first proposal for this new research vehicle, the X-15, was made in nineteen fifty-four.

VOA: special.2010.07.07

In nineteen fifty-three, the first lady persuaded Congress to declare a National Teacher Day.

VOA: special.2010.04.30

Nautilus was put to sea for the first time on January seventeenth, nineteen fifty-five.

VOA: special.2010.06.11

The first VOA broadcast in Special English took place on October nineteenth, nineteen fifty-nine.

VOA: special.2009.10.16

On April seventh, nineteen fifty-nine, the space agency introduced the first American astronauts.

VOA: special.2009.06.10

became a national best-seller. One hundred fifty years after "On the Origin of Species" first appeared, it remains one of the most influential and debated books ever written.

VOA: special.2009.12.01

Michael Jackson would have celebrated his fifty-first birthday in August.

VOA: special.2009.06.27

Dave Brubeck formed his first quartet in nineteen fifty-one.

VOA: special.2009.11.30

The group made its first recording in nineteen fifty-two.

VOA: special.2009.03.01

In nineteen fifty-eight, Nina Simone recorded her first album.

VOA: special.2009.10.04

He made his first movie in nineteen fifty-six.

VOA: special.2010.04.04

"When Darwin first proposed his theory in eighteen fifty-nine, he had no concept of a gene, no concept of a chromosome, no concept of mutation, and certainly no concept of things like DNA and RNA."

VOA: special.2009.12.01

Fifty-year-old Louis McAnespy bought his first boat when he was 15-years-old.

VOA: standard.2010.05.04