banjo clock

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Introduction References & Edit History Related Topics

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Painting palette with oil paints and brushes. Rainbow colored paints, arts and entertainment

Art History: The Origins of 7 of Your Favorite Art Supplies

Moonrise over Tucson, Arizona

Why Doesn’t Arizona Observe Daylight Saving Time?

Calendar marking march 15th

22 Questions About Time and Timekeeping Answered

Abstract vector hi speed internet technology background

History of Technology Timeline

molecule model, element

Molecular Machines: Making for the Future

Discover

President Barack Obama signs the White House Initiative on Educational Excellence for African Americans Executive Order in the Oval Office, July 26, 2012

What Is an Executive Order?

The impeachment trial of Pres. Andrew Johnson, illustration from Frank Leslie's Illustrated Newspaper, March 28, 1868.

What If the President Is Impeached?

Martin Luther King, Jr.

Why We Celebrate MLK Day

Pluto. Crop of asset: 172304/IC code: pluto0010 at 270 degrees. The Changing Faces of Pluto. Most detailed view to date of the entire surface of the dwarf planet Pluto, constructed from multiple NASA Hubble Space Telescope photographs 2002-03.

Wee Worlds: Our 5 (Official) Dwarf Planets

Ruminant. Deer. Red deer. Cervus elaphus. Buck. Stag. Antlers.

9 of the World’s Deadliest Mammals

Abstract vector hi speed internet technology background

History of Technology Timeline

Indian hijras participate in a religious procession in Gandhinagar, India, some 30 kilometers from Ahmedabad, on March 22, 2017. Hijra is a term used in South Asia which refers to transgender individuals who are born male. (gender identity, gender expression)

6 Cultures That Recognize More than Two Genders

banjo clock: References & Edit History

More Articles On This Topic

Assorted References

development by Willard
- In Simon Willard

Article Contributors

Primary Contributors

Jonathan D. Betts
Curator of Horology, Royal Observatory Greenwich, National Maritime Museum.

Other Encyclopedia Britannica Contributors

Article History

Type	Description	Contributor	Date
	Replaced photograph.	Amy Tikkanen	Jul 17, 2014
	Article revised and updated.	William L. Hosch	Jan 25, 2007
	Article added to new online database.	The Editors of Encyclopaedia Britannica	Jul 20, 1998