Timekeeping

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How Do We Know Exactly When the New Year Begins?

Appreciating the invention of standardized time zones as the calendar turns to 2020.

Archives

Marvin E. Mundel Industrial Engineering Collection, 1937-1996

Inventor Name Mundel, Marvin E.

Archives

Madison, Wisconsin, Inventors, 1997

Inventor Name West Field, Cyrus; Dowd, Charles Ferdinand; Munger, George Nicholas; Coe, Walter H; Schailer, Reuben; Duryea, J. Frank Repository Guilford Free LibraryGuilford, CT Physical Description 1 item (11 typewritten p.)

Archives

James Arthur Clock and Watch Collection, 1743-1967

Inventor Name Arthur, James

Archives

Harold Lyons Atomic Clocks Collection, 1935-1991

Inventor Name Lyons, Harold

Archives

National Company (NATCO) Atomic Clocks Records, 1955-1968

Inventor Name Atomic Clock

Archives

Electronic Display World Newsletters, 1981-1999, 2001

Inventor Name Electronic Display World Newsletters

Archives

Richard Bond Clock Escapement Video Documentation, 1997

Inventor Name Bond, Richard

Archives

Eli Terry Letters Patent, 1826

Inventor Name Terry, Eli Repository Connecticut Historical SocietyOne Elizabeth Street at Asylum AvenueHartford, CT 06105860-236-5621http://www.chs.org/ Physical Description 1 item

Archives

George Francis Thomas Papers, 1902-1912

Inventor Name Thomas, George Francis Repository Connecticut Historical SocietyOne Elizabeth Street at Asylum AvenueHartford, CT 06105860-236-5621http://www.chs.org/

Archives

Benjamin B. Lewis Papers, 1861-1980, bulk 1861-1884

Inventor Name Lewis, Benjamin B.

Archives

William Ainsworth Papers, 1884-1933

Inventor Name Ainsworth, William

Archives

Folger Family Papers, 1676-1952

Inventor Name Folger, Walter

Archives

Joseph Saxton, Unpublished Papers by Arthur H. Frazier

Inventor Name Saxton, Joseph Repository American Philosophical SocietyLibrary105 South Fifth StreetPhiladelphia, PA 19106-3386215-440-3400http://www.amphilsoc.org/

Archives

Cranch Family Papers, 1749-1928

Inventor Name Cranch, Richard Repository Massachusetts Historical Society1154 Boylston StreetBoston, MA 02215-3695617-536-1608http://www.masshist.org/library_collections/

Archives

Felix Meier, 1879-1906

Inventor Name Meier, Felix

Archives

James D. Law Diary, 1895

Inventor Name Law, James Duff

Archives

Ithaca Calendar Clock Company Collection, 1873-1968

Inventor Name Williams, George R.

Archives

Edward Everett Hayden Papers, 1817-1932

Inventor Name Hayden, Edward Everett Repository Library of CongressManuscript Division101 Independence Ave., SEWashington, DC. 20540-4680202-707-5387www.loc.gov Physical Description 12.4 linear ft.

Archives

Robert Hitchcock Papers, 1859-1975

Inventor Name Hitchcock, Robert Repository Jefferson County Historical Society228 Washington StreetWatertown, NY 13601315-782-3491 Physical Description 0.3 cubic ft.