The Cosmic Calendar is a method to visualize the chronology of the universe, scaling its currently understood age of 13.8 billion years to a single year...

A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. A date is the designation...

model dependent. Chronology of the universe Cosmic Calendar Cosmological horizon On the physical basis of cosmic time by S.E. Rugh and H. Zinkernagel D'Inverno...

A lunar calendar is a calendar based on the monthly cycles of the Moon's phases (synodic months, lunations), in contrast to solar calendars, whose annual...

Calendar of saints Advent calendar Wall calendar Geologic Calendar Cosmic Calendar Lunar calendar World calendar Parker, Richard A., "The Calendars of...

The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas...

A lunisolar calendar is a calendar in many cultures, incorporating lunar calendars and solar calendars. The date of lunisolar calendars therefore indicates...

Badí‘ calendar Basotho calendar Bengali calendar Gregorian calendar Berber calendar Bulgar calendar Byzantine calendar Caesar's Calendar Coptic calendar Discordian...

before and after a calendar change, respectively. Usually, they refer to the change from the Julian calendar to the Gregorian calendar as enacted in various...

his The Calendars of ancient Egypt (Chicago: University Press, 1950). One example is Patrick O'Mara, "Censorinus, the Sothic Cycle, and calendar year one...

Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still...

including elements such as the "Ship of the Imagination" and the "Cosmic Calendar", but features information updated since the 1980 series, along with...

The Holocene calendar, also known as the Holocene Era or Human Era (HE), is a year numbering system that adds exactly 10,000 years to the currently dominant...

Counts: The Story of the Calendars. New York: Philosophical Library. Media related to Metonic cycle at Wikimedia Commons Eclipses, Cosmic Clockwork of the Ancients...

most likely happened 13.8 billion years ago; see age of the universe. Cosmic Calendar (age of the universe scaled to a single year) Formation and evolution...

Roman calendar was the calendar used by the Roman Kingdom and Roman Republic. Although the term is primarily used for Rome's pre-Julian calendars, it is...

Hijri calendar (Arabic: ٱلتَّقْوِيم ٱلْهِجْرِيّ, romanized: al-taqwīm al-hijrī), or Arabic calendar also known in English as the Muslim calendar and Islamic...

archaeology and geology. Some scientists prefer the terms chronometric or calendar dating, as use of the word "absolute" implies an unwarranted certainty...

Christ (BC) are used when designating years in the Gregorian and Julian calendars. The term anno Domini is Medieval Latin and means "in the year of the...

year notations for the Gregorian calendar (and its predecessor, the Julian calendar), the world's most widely used calendar era. Common Era and Before the...

The proleptic Gregorian calendar is produced by extending the Gregorian calendar backward to the dates preceding its official introduction in 1582. In...

The adoption of the Gregorian Calendar has taken place in the history of most cultures and societies around the world, marking a change from one of various...

[citation needed] Age of the universe – Time elapsed since the Big Bang Cosmic Calendar – Method to visualize the chronology of the universe (age of the universe...

in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth...

The World Calendar is a proposed reform of the Gregorian calendar created by Elisabeth Achelis of Brooklyn, New York in 1930. The World Calendar is a 12-month...

The Hebrew calendar (Hebrew: הַלּוּחַ הָעִבְרִי, romanized: halLūaḥ hāʿĪḇrī), also called the Jewish calendar, is a lunisolar calendar used today for...

Timeline of women rabbis (1890s–present) Sikh gurus (1469–1666) The Cosmic Calendar is a method to visualize the chronology of the universe, scaling its...

Designation of an absolute zero temperature at the beginning of the Universe Cosmic Calendar – Method to visualize the chronology of the universe Cosmogony – Branch...

as in James Harvey Robinson's 1921 book The Mind in the Making. Cosmic Calendar Calendar Kentucky Geological Survey (2011). "The Geological Time Scale v...

timeline of the Stelliferous Era Graphical timeline of the universe Cosmic Calendar (age of the universe scaled to a single year) Detailed logarithmic...