After many years of research, he wrote the book "The Origin of Species" in eighteen fifty-nine.

VOA: special.2009.12.16

She became interested in anthropology -- the study of the origin, development and actions of humans.

VOA: special.2009.02.22

Naturalist Charles Darwin published "On the Origin of Species" in eighteen fifty-nine.

VOA: special.2009.12.01

"The most important step is one they're only beginning to take now and that's to prohibit the import and sale of timber which was illegally sourced in the country of origin."

VOA: standard.2010.07.28