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Timelines of United States history by period (time span) — of pre−nationhood and national U.S. history. Pages in category "Timelines of United States history by period" The following 12 pages are in this category, out of 12 total.
A People's History of the United States; Cyclopaedia of Political Science, Political Economy, and the Political History of the United States; Land of Promise: An Economic History of the United States; The History of the United States of America 1801–1817; Oxford History of the United States; The Penguin History of the United States of America ...
When recording British history, it is usual to quote the date as originally recorded at the time of the event, but with the year number adjusted to start on 1 January. [9] The latter adjustment may be needed because the start of the civil calendar year had not always been 1 January and was altered at different times in different countries.
A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. [1] For example, the current year is numbered 2025 in the Gregorian calendar, which numbers its years in the Western Christian era (the Coptic Orthodox and Ethiopian Orthodox churches have their own Christian eras).
Ancient history – Aggregate of past events from the beginning of recorded human history and extending as far as the Early Middle Ages or the Postclassical Era. The span of recorded history is roughly five thousand years, beginning with the earliest linguistic records in the third millennium BC in Mesopotamia and Egypt .
Timelines of United States history by period (12 P) Lists of tornadoes in the United States by time (102 P) W. Aftermath of World War II in the United States (5 C, 43 P)
This is an accepted version of this page This is the latest accepted revision, reviewed on 17 February 2025. "American history" redirects here. For the history of the continents, see History of the Americas. Further information: Economic history of the United States Current territories of the United States after the Trust Territory of the Pacific Islands was given independence in 1994 This ...
When the Malik Shah determined to reform the calendar, Omar was one of the eight learned men employed to do it, the result was the Jalali era (so called from Jalal-ud-din, one of the king's names) – 'a computation of time,' says Gibbon, 'which surpasses the Julian, and approaches the accuracy of the Gregorian style.'