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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 ...
This is a list of the individual United States year pages. 18th century. 1770s 1776 ... Outline of the history of the United States; Timeline of the history of the ...
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.
The history of calendars covers practices with ancient roots as people created and used various methods to keep track of days and larger divisions of time. Calendars commonly serve both cultural and practical purposes and are often connected to astronomy and agriculture .
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 .
January 21, 2020 – The first patient in the United States is diagnosed with coronavirus. January 26, 2020 – Kobe Bryant, along with his daughter, Gianna, and 7 others, perish in a helicopter crash. February 5, 2020 – The majority of the United States Senate votes to acquit President Trump of charges related to the Trump-Ukraine scandal.
During the period between 1582, when the first countries adopted the Gregorian calendar, and 1923, when the last European country adopted it, it was often necessary to indicate the date of some event in both the Julian calendar and in the Gregorian calendar, for example, "10/21 February 1750/51", where the dual year accounts for some countries ...