In the past,he noted, the national government had tried to divide free states from slave states by a line across a map.

VOA: special.2009.04.23

Google technology allows each person who tells a story to show where he or she lives on a map of the United States.

VOA: special.2010.03.03

He is a geneticist who led the effort to map all the human genetic material,DNA.

VOA: special.2009.12.01

He designed a dymaxion car, a dymaxion house, and a dymaxion map of the world.

VOA: special.2010.05.30