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What is the Julian calendar?

Updated: 8/23/2023
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14y ago

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The Julian calendar was introduced by Julius Caesar in 45 BC.

In the Julian calendar, the tropical year is approximated as 365 1/4 days = 365.25 days. This gives an error of 1 day in approximately 128 years. The approximation 365 1/4 is achieved by having 1 leap year every 4 years. It was in common use until the 1500s, when countries started changing to the more precise Gregorian calendar, which has more complex rules for which years are leap years. However, some countries (for example, Greece and Russia) used the Julian calender well into the 1900s, and the Orthodox church in Russia still uses it, as do some other Orthodox churches. As a result those churches celebrate several religious holidays later then non-Orthodox churches.

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9y ago

A Julian date, which is presented as simply a number, is the number of days that have elapsed on the Julian calendar and the proleptic Julian calendar (meaning the application of the Julian calendar to a period before its introduction in 46 BCE) since 12 noon on Monday the 1st of January 4713 BCE.

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Q: What is the Julian calendar?
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Caesars calendar used in europe until 1582?

The name of Caesar's calendar was the Julian calendar. It was replaced in 1582 by the Gregorian calendar, which we used today.


When was the Julian Calendar made?

The Julian Calendar was initiated by Julius Ceaser in 45B.C.


Whom is the Julian calendar named for?

The Julian Calendar is named for Julius Caeser.


What was calendar before Julian calendar?

the Roman calendar


What is Julian calendar for 2012?

2012 in the Julian calendar is a leap year that begins on a Saturday and ends on a Sunday. 1 Jan 2012 in the Julian calendar is 14 Jan 2012 in the Gregorian calendar.


Which is the modern calendar the Gregorian calendar or the Julian calendar?

the Gregorian calendar


When does the Julian calendar begin?

The Julian calendar begins on January 1st. next January 1st will be 1001.


What countries use the Julian calendar?

Not a country, but Foula still uses the Julian calendar


Is the Julian calendar lunar solar or lunisolar?

The civil version of the Julian calendar is based on the su, and so it is solar. However, the Julian calendar includes an undated lunar calendar that allows it to calculate when Easter is, so it is lunisolar.


Is the roman calendar the same as the Julian calendar?

he Roman calendar has the same months and month lengths as the Julian calendar, but inserts leap days according to a different rule


How many days is the Julian calendar behind the Gregorian calendar?

The Julian calendar is 13 days behind the Gregorian calendar from March 1900 until March 2100.


Why was the Julian calendar most important in the Roman legacy?

Our calendar is the Gregorian Calendar. It is named after Pope Gregory XIII who took 11 minutes of the day of the Julian calendar and made some other minor modifications in 1582. This means that our calendar is a slightly modified version of the Julian Calendar.