The art form reached its height during the Renaissance, when micro-mosaics were created for St.Peter's Basilica in Vatican City because traditional altar paintings were decaying from humidity and other environmental factors.

VOA: standard.2010.07.30

You have to step up. You have to serve." He said groups like the Clinton Global Initiative are making a difference around the world by working with business to cut dangerous emissions, empowering entrepreneurs with micro-loans, and giving hope to some of the world's poorest children.

VOA: standard.2009.09.23