These pages contain the trends of millennia and centuries. The individual century pages contain lists of decades and years. See history for different organizations of historical events. See calendar and list of calendars for other groupings of years. [[[[[[ == ddddddddd ==]]]]]] A millennium is a period of time, equal to one thousand years (from Latin mille, thousand, and annum, year). ... This page is about centuries as units of time. ... For other senses of this word, see history (disambiguation). ... A calendar is a system for naming periods of time, typically days. ... // In current use 53-week calendar Astronomical year numbering Bahai calendar Bengali calendar Buddhist calendar Chinese calendar Coptic calendar Discordian calendar Ethiopian calendar Fiscal year Gregorian calendar Hebrew calendar Hindu calendars Indonesian calendars Iranian calendar Irish calendar Islamic calendar ISO 8601 ISO Week-Date calendar Revised Julian calendar Japanese calendar...
For earlier time periods, see cosmological timeline, geologic timescale, evolutionary timeline, pleistocene, and logarithmic timeline. This timeline attempts to show the best scientific estimates of the timings of past events and predictions of the approximate timing of hypothetical future events with cosmological significance. ... The geologic time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of the Earth. ... This timeline outlines the major events in the development of life on planet Earth. ... The Pleistocene epoch (pronounced like ply-stow-seen) is part of the geologic timescale. ... A logarithmic timeline, based on logarithmic scale, was developed by Heinz von Foerster, the philosopher and physicist. ...