During this period,many experts warned of mass starvation in the developing world where populations were expanding faster than crop production.

VOA: special.2009.11.10

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

VOA: special.2009.05.01

During this period, wealthy people used finely made tapestries to bring color and warmth to their large houses.

VOA: special.2009.11.04

No single space project in this period will be more impressive to mankind or more important for the long range exploration of space.

VOA: special.2009.07.08

During this period he very much enjoyed a comic strip about soldiers called "Willie and Joe."

VOA: special.2009.10.25

During this period, families gathered in their living rooms every night to listen to radio shows.

VOA: special.2010.01.31

Rebecca Skloot points out that this was not an unusual medical practice during this period.

VOA: special.2010.07.21

Visitors to the exhibit can see the many drawing books he made during this period.

VOA: special.2010.03.05

The other very important law passed during this period created the national social security system.

VOA: special.2011.04.07

Japanese prints from this period were called ukiyo-e, or "pictures of the floating world."

VOA: special.2009.09.02

Their advice may be all the more helpful during this period of economic recession.

VOA: special.2009.09.11

Many people say he represents the spirit of growth in America during this period.

VOA: special.2009.02.21

The exhibit at the Smithsonian American Art Museum shows paintings made during this period.

VOA: special.2009.03.23