Skip to main content

This post is a follow up to another interesting post on New Year greetings that was shared publicly, and was in...


This post is a follow up to another interesting post on New Year greetings that was shared publicly, and was in Tamil.
https://plus.google.com/111375717217714398633/posts/QZwEwc2s7kG

This section captures some basic facts about Julian and Gregorian calendars.

Quick Facts about Julian and Gregorian Calendar:

1. Until 45 BC, the most commonly registered calendar system happened to be the Roman calendar

2. In the year 45 BC, Julius Caesar decided to clean up the Roman calendar to generate a civil calendar, and switch to the Julian calendar with the able guidance of the Alexandrian astronomer, Sosigenes

3. Julian calendar had 365 days and 12 months taking the solar cycle into account

4. Over time, the discrepancy between Julian calendar and real solar cycle impacted the estimation of seasons

5. This discrepancy resulted in the creation of the Gregorian Calendar in 1582

6. Gregorian Calendar, which has become more of a standard now, was adopted at different times since the first adoption with even Britain taking another 170 years to make January 1st (1752) as the first day of the year.

Are there other calendar systems?

இந்த January 1st புத்தாண்டு ஆங்கிலேயர்களுக்கு மட்டுà®®் புத்தாண்டு அல்ல

இது solar cycle கொண்டு à®®ுதலில் 45 BC ஆரம்பித்தது

ஜூலியஸ் சீசர் இதை தொடங்கி வைத்தாà®°்

இந்த ஜூலியன் காலண்டர் கிà®°ிகோà®°ியன் காலெண்டராக 1582 ஆண்டில் à®®ாà®±ியது

ஆங்கிலேயர்கள் 170 ஆண்டுகளுக்கு (1752) பிறகு கிà®°ிகோà®°ியன் காலண்டருக்கு à®®ாà®±ினர்

எனவே இந்த காலண்டர் astronomy/வானியல் சம்பந்த பட்டது

à®®ேலுà®®், இந்த காலண்டர் உலகத்திà®±்கு à®’à®°ு வகை à®’à®±்à®±ுà®®ை கொண்டு வருகிறது.

Comments

Popular posts from this blog

#OTD in 1886

#OTD in 1886 Josephine Cochrane, a woman inventor from Shelbyville, Illinois, USA was issued the dishwashing machine patent, which also ended up becoming the first commercially successful dishwashing machine. Interesting Facts about Ms. Josephine Cochrane: 1. Born as Josephine M. Garis in 1839, in Ashtabula County, Ohio. 2. Josephine was raised in Shelbyville, Illinois, and got married to William Cochran in 1858. 3. Josephine was also the grand daughter of John Fitch, who was known for steam boat related inventions. 4. Josephine was a socialite, and had a prosperous early married life with her husband. 5. But, lost her husband to alcohol at the age of 44 with a family debt of around $1500+. 6. Josephine's family situation along with her prior interest to develop dishwashing machines to relieve housewives from washing dishes after a meal drove her towards developing the first commercially viable machine. 7. Though the dishwashing machine was not a household item during her times, it...

OTD: Neptune's largest moon, Triton, discovered on this day in 1846 by Astronomer, William Lassell

OTD: Neptune's largest moon, Triton, discovered on this day in 1846 by Astronomer, William Lassell

#OTD #tv #television #baird #testing #test

#OTD #tv #television #baird #testing #test John Logie Baird had his first testing of a working television (TV) on October 2, 1925