Copyright: Readers should note that, because this is a publication of the National Institute of Standards and Technology, the text and images in this short treatise are not subject to copyright, and may be reproduced and used without consideration for copyright regulations. However, it would be appreciated if users acknowledged this web site as a source of information.
- Example of how to reference this online database:
- K. Higgins, D. Miner, C.N. Smith, D.B. Sullivan (2004), A Walk Through Time (version 1.2.1). [Online] Available: http://physics.nist.gov/time [2010, July 12]. National Institute of Standards and Technology, Gaithersburg, MD.
- Citation Form:
- Author/editor (Year), Title (edition). [Type of medium] Available: URL [Access date].
|The date for the earliest Egyptian calandar was modified and a reference was added.|
|Substantial revision by Collier N. Smith, with much valuable input and advice from Donald B. Sullivan, chief of the Time and Frequency Division.|
|Graphical layout designed and created by Johnathan Coursey and Michael Douma.|
|Adapted to HTML by G. Wiersma and M. Hane.|
|Based on the K. Higgins, D. Miner, "A Walk Through Time," Department of Commerce Publication|
|This brief essay on the history of timekeeping was conceived and written by Kent Higgins and illustrated by Darwin Miner, of the Program Information Office of the National Bureau of Standards (now NIST) in about 1975, and printed in booklet form for distribution to visitors to the Boulder Laboratories. It was reprinted several times, with small revisions principally by Collier N. Smith, over the next 20 years.|