سال نو مبارک
Happy New Year
1391 (3750)
Happy New Year
1391 (3750)
The First day of Spring is considered New Years day by the Persians. Its based on Earth's orbit rather than the number of rotations (days) or Lunations (full moons/months)
Its one of the only calendars that actually recon years by tracking the orbit of the planet making a year about 365 days 5 Hours and 48 Minutes 46 Seconds.
The months of January and February were added to the end of the calendar after December (the tenth month) around 700 BCE. in an attempt to align the calendar with solar year fixing the dates of equinox and solstice (first day of spring, summer. fall, and winter).
Around 153 BCE New Years day was moved to January 1st to coincide Roman consuls first entered office and had a year term begging on that day. Prior to that the New Year was celebrated 25 of March roughly near the vernal equinox which drifted due to the calendar being short a number of days . Nearly the rest of the world still celebrated the New Year on March 25.
Celestial observations during the time of Julius Caesar indicated that the calendar year was still a bit short. Julius Caesar adding a Leap day every 4 years by doubling 24 February to put the equinox back in line with the calendar.
The spring equinox was set to the 21st March in the year 325 by the council of Nicea. The solar year being a little over 9 minutes longer than the calendar year caused the spring equinox to be near 11th March by 1582 A.D. To correct this 11 day error Pope Gregory XIII corrected the calender by subtracting 11 days causing October 5th 1582 of the Julian calendar to be followed by October 15, 1582 in the new calendar restoring the equinox to the correct date. Gregory also instituted a new leap year rule - Leap year is every 4 years except years ending in 00 (every 100 year) are not leap year unless also divisible by 400, adjusting the calendar to 365.2425 days while this is still off the actual time being closer to 365.2421.
The Gregorian Calendar was adopted by many countries at different times. Britain and the colonies adopted the Gregorian calendar in a 2 step process when January 1,1752 became new years day and September 2, 1752 was followed by September 14 1752 (yes that was an adjustment of 12 days because by that time the old calender was yet another day off. 1751 was a short year March 25,1751-Dec 13,1751).
Its one of the only calendars that actually recon years by tracking the orbit of the planet making a year about 365 days 5 Hours and 48 Minutes 46 Seconds.
The months of January and February were added to the end of the calendar after December (the tenth month) around 700 BCE. in an attempt to align the calendar with solar year fixing the dates of equinox and solstice (first day of spring, summer. fall, and winter).
Around 153 BCE New Years day was moved to January 1st to coincide Roman consuls first entered office and had a year term begging on that day. Prior to that the New Year was celebrated 25 of March roughly near the vernal equinox which drifted due to the calendar being short a number of days . Nearly the rest of the world still celebrated the New Year on March 25.
Celestial observations during the time of Julius Caesar indicated that the calendar year was still a bit short. Julius Caesar adding a Leap day every 4 years by doubling 24 February to put the equinox back in line with the calendar.
The spring equinox was set to the 21st March in the year 325 by the council of Nicea. The solar year being a little over 9 minutes longer than the calendar year caused the spring equinox to be near 11th March by 1582 A.D. To correct this 11 day error Pope Gregory XIII corrected the calender by subtracting 11 days causing October 5th 1582 of the Julian calendar to be followed by October 15, 1582 in the new calendar restoring the equinox to the correct date. Gregory also instituted a new leap year rule - Leap year is every 4 years except years ending in 00 (every 100 year) are not leap year unless also divisible by 400, adjusting the calendar to 365.2425 days while this is still off the actual time being closer to 365.2421.
The Gregorian Calendar was adopted by many countries at different times. Britain and the colonies adopted the Gregorian calendar in a 2 step process when January 1,1752 became new years day and September 2, 1752 was followed by September 14 1752 (yes that was an adjustment of 12 days because by that time the old calender was yet another day off. 1751 was a short year March 25,1751-Dec 13,1751).
