orrisroot

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The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)

New Seven Wonders of the World

Orange basketball on black background and with low key lighting. Homepage 2010, arts and entertainment, history and society

The 10 Greatest Basketball Players of All Time

World Data Locator Map: Australia

Is Australia an Island?

Charles Darwin, carbon print photograph by Julia Margaret Cameron, 1868.

What Darwin Got Right (and Wrong) About Evolution

Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)

All 119 References in “We Didn’t Start the Fire,” Explained

A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England

Inventors and Inventions of the Industrial Revolution

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

orrisroot

plant substance

Learn about this topic in these articles:

Iridaceae

In Iridaceae: Major genera and species
Members of Iris also yield orrisroot (a substance used in the manufacture of perfumes, soaps, powders, and dentifrices).
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source

In iris
…is also the source of orrisroot, from which “essence of violet” perfume is made.
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