During this period, hair grows at a rate of about three tenths millimeters a day, or one centimeter a month.

VOA: special.2011.04.05

The Harlem Renaissance was a period in which black artists explored their culture and showed pride in their race.

VOA: special.2009.02.22

There aren't very many examples of names which are equally popular for both boys and girls for a really long period."

VOA: special.2009.07.06

Medical experts say small amounts of carbon monoxide over a long period of time can greatly harm an unborn baby.

VOA: special.2010.02.02

The President said the government will provide about eight billion dollars in additional loans to the company during this period.

VOA: special.2009.05.01

Poets called it the Golden Age. A golden age now describes a historical period of great artistic,scientific or economic progress.

VOA: special.2010.06.06

"American exports grew almost seventeen percent over the first four months of this year, compared to the same period last year.

VOA: special.2010.07.09

A recent study showed that RTS,S reduced clinical cases of malaria by fifty-three percent over an eight month follow-up period.

VOA: special.2010.04.20

The number of Washingtonians grew about three percent during that period while the United States population increased more than seven percent.

VOA: special.2009.03.20

His early works were influenced by composers of the classical period of the late seventeen hundreds and early eighteen hundreds.

VOA: special.2010.07.12

The experts say individual progress and not a set time period should always guide a decision to return to play.

VOA: special.2009.10.28

The study involved forty-four traders and their profits and losses over a twenty-month period ending in two thousand seven.

VOA: special.2009.02.25

But this home contains over 2,000 pieces of art organized from room to room by period and by geography.

VOA: special.2009.01.11

But it was also during this period that Hollywood and the American film industry became much more skilled and influential.

VOA: special.2011.04.14