The hunters left spear points shaped out of stone that they used as weapons.

VOA: special.2010.07.05

The statement describes the Rolling Stone article as "unfortunate", but adds - "it is just an article."

VOA: standard.2010.06.22

Remnants of its 74 stone locks, as well as brick aqueducts that brought it water from the river,remain.

VOA: standard.2010.04.29

That budget would end funding for the Constellation program, which would have returned U.S.astronauts to the moon as a stepping stone to Mars.

VOA: standard.2010.04.15

"This will serve as a catalyst to help Nigeria to be ready, to improve itself, to look at the organization, to look at the quality of the facilities,and therefore I hope this will serve as a kind of stepping stone for Nigeria to be ready,".

VOA: standard.2009.10.22