Other scientists paid Margaret Mead a high honor when she was seventy-four years old.

VOA: special.2010.01.17

When he was four years old, he got eyeglasses to correct the problem.

VOA: special.2010.05.30

Zora's mother died in nineteen-oh-four, when Zora was thirteen years old.

VOA: special.2009.02.22

He got the idea for Khan Academy four years ago, when he taught a young cousin how to convert kilograms to grams.

VOA: standard.2010.03.26

A big change came four years ago, when Russia's new forestry law essentially privatized management of state forests.

VOA: standard.2010.08.10

It was the most serious clash on the border since the Lebanon War four years ago, when Israel battled the Islamic guerrilla group Hezbollah.

VOA: standard.2010.08.03

It all began three or four years ago when there was construction boom.

VOA: standard.2010.06.24