അധിവർഷവും കലണ്ടറിന്റെ ചരിത്രവും | What is Leap Year? History of Calendars | Gregorian Calendar

2024 is a leap year. The year 2024 thus has 366 days and February 2024 has 29 days. Why an extra day is added to February in every 4 years or leap years? This video explains the concept of a leap year and how it works. The leap year system was introduced as part of a long history of evolution of the calendar. The video also explains the history of the calendar system and the history behind the evolution of the modern Gregorian calendar. The calendar was introduced by Romulus changes made by Numa Pompellius and the introduction of an intercalation leap month the Julian calendar introduced by Julius Ceaser and the fixing of leap year etc are discussed in this video.
#leapyear #february29 #alexplain
alexplain is a Malayalam channel where must-know things around the world are explained in the simplest way possible. The videos cover topics like things to know about India, recent current affairs, explanations on politics, economics, history, science, and technology, etc. The videos in this channel will help you gain knowledge of different things around us.
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[@roypaul5741]

വെറും 23 മിനുട്ട് കൊണ്ട് ഇത്രയും വലിയ അറിവുകൾ മനോഹരമായി പറഞ്ഞുതന്നതിന് ഒരുപാട് നന്ദി.

[@alexplain]

Thank you

[@mallusciencechannel909]

ശെരിക്കും 23 മിനുട്ട് 26 സെക്കന്റ് ആണ് ഉള്ളത്. നിങ്ങൾ വരുത്തിയ ഈയൊരു എറർ നാൽപ്പത് വർഷം കഴിയുമ്പോൾ വലിയ പ്രശ്നം ആവും ഉണ്ടാക്കുക. അതുകൊണ്ട് മാത്തമാറ്റിഷ്യന്മാരെ വിളിച്ചു എത്രയും പെട്ടെന്ന് വേണ്ടത് ചെയ്യുക.😊😊😂🎉

[@deepeshap258]

ഇത്രയും റിസർച്ച് ചെയ്തു ആളുകൾക്കു പകർന്നു നൽകാൻ കാണിച്ച ആ മനസിന്‌ നന്ദി.... 2000 ഇൽ ജീവിക്കാൻ കഴിഞ്ഞ എനിക്ക് എന്നോട് അഭിമാനം തോന്നുന്നു 😀

[@simisiya]

Well done sir

[@meenubhaskern6400]

This is not the exact reason for every 100 th yr(century ) is not a leap year but every 400 th yr is a leap year
It is because earth takes 365 days 48 min 46 sec for a complete revolution (it is slightly less than 365 days 6 hrs. So
every yr there is a shortage of 12 min. This has to be subtracted( 1200 min which is equal to 20 hrs and is equal to approx 1day ) in every century. And every 400 yrs 4+4+4+4 = 16 hrs aporox 1day ha to be added
So 2000, 2400, 2800 yrs are leap yrs be but not 1700,1800,1900,2100,2200 etc
Thanks

[@manojtk1485]

Mr. അലക്സ് ....സമകാലീക സംഭവങ്ങളിലും പൗരാണിക ചരിത്രങ്ങളിലും എന്തെങ്കിലും വിവരങ്ങൾ സത്യസന്ധമായി അറിയുന്നതിന് ഞാൻ ആദ്യം താങ്കളുടെ വീഡിയോ ആണ് റഫർ ചെയ്യുന്നത് .എന്നെപ്പോലെ പലരും........ വളരെ നന്ദി..... തുടരുക.,,,,,

[@alexplain]

Thank you

[@akhilsivaraj3446]

വീഡിയോ കണ്ടു തുടങ്ങിയത് അറിയാവുന്ന topic aanloon വച്ചായിരുന്നു.. അറിയുന്ന കാര്യങ്ങളെക്കാൾ കൂടുതൽ അറിയാത്ത കാര്യങ്ങൾ ആണെന്നു കണ്ടു കഴിഞ്ഞപ്പോ മനസിലായി.. Thanku sir❤

[@alexplain]

Welcome

[@gowthampradeep6287]

@@alexplainsir , you are great ,❤

[@ANUMIDHUN1]

Njanum

[@ismailpandikkad3232]

ഇത്രയും കടുകട്ടിയായ വിഷയം എത്ര ലളിതമായാണ് താങ്കൾ അവതരിപ്പിക്കുന്നത്..❤

[@aiswaryaraj37]

ഞങ്ങളുടെ geography sir ആണ് ഈ അറിവ് മനോഹരമായി പറഞ്ഞു തന്നത്. ഇത് കേൾക്കുമ്പോൾ വീണ്ടും ആ ക്ലാസ്സിൽ ഇരിക്കുന്ന പോലെയുണ്ട്.
വളരെ മികച്ച അവതരണം

[@alexplain]

Thank you

[@hamzafalily]

ആനുകാലികവും പൗരാണികവും എല്ലാം ഇവിടം സുലഭം.
ലളിതമായ ശൈലിയിൽ മൂല്യച്യുതിയില്ലാതെ
അഭിനന്ദനങ്ങൾ🎉❤

[@ajvinnovations]

Very informative. I would list it as one of your top 10 videos.

[@josuskingdom1932]

Lot of new information from a topic which is known to everyone and never knew there was a correction like this in the calendar. Good one from you Mr. Alex.

[@Banker__Rider]

Keep going bro! Well studied and presented! Been a regular watcher of your videos

[@alexplain]

Awesome! Thank you!

[@mathewsonia7555]

കേൾക്കേണ്ട ഒരു വീഡിയോ, അറിവ് പകർന്ന് വീഡിയോ.❤

[@coloniaparu1654]

ഇതിനൊന്നും അഭിപ്രായം പറയാനുള്ള വിവരം എനിക്കില്ല എന്നാലും ഏറെക്കുറെ മനസ്സിലായി സംഭവം തന്നെ ഈ അറിവ് പകർന്ന നിങ്ങൾക്ക് ഒരുപാട് ഒരുപാട് നന്ദി

[@SoULHeart458]

This is just awesome! Great video

[@shafeeque605]

2000 ഫെബ്രുവരിയിൽ ജീവിച്ചിരുന്ന ഭാഗ്യവാനാണ് പക്ഷെ സംഭവം അറിയുന്നത് ഇപ്പോഴാണ് 😅 thanks bro❤

[@basilalias987]

Very informative Alex. Thank you very much.

[@vipinvijayan1985]

എന്തിനെ പറ്റി അണ് എന്ന് നോക്കാതെ വീഡിയോസ് കാണുന്ന ഒരേ ഒരു ചാനൽ അണ് ഇത്, എല്ലാത്തിലും എന്തെങ്കിലും ഒന്ന് ഉണ്ടാവും എന്ന് ഉറപ്പാണ്, ❤

[@naachrang9]

Such an interesting explanation👌👌👌 Thank you Alex

[@TomsVarghese]

My doubts around leap year calculation got clarified after 20 years. Thank you!!

[@ferozkhader3385]

Thanks for refreshing school days. Well explained. 👏🏼👏🏼

[@safeershamsudeen]

My teacher once told us about the leap year in detail for making a program in c++ to find whether a year is a leap year or not , You added some more information regarding the calendar systems . Thanks for the video 😊🤝

[@dcompany6015]

Thanks for the information....keep going ❤

[@AkhilaAjith-gk1bw]

Hats off to your effort, research and presentation!!!❣️

[@philipmathew2624]

Excellent explaination, The revolution theory was known,but history behind it was not known. Well explianed Alex....!

[@Harley_7]

ഇത്രയും കാര്യങ്ങൾ ഇതിലുണ്ടായിരുന്നെന്ന് ഇപ്പോളാ മനസ്സിലായെ.. Thanks Alex❤

[@alexplain]

Welcome

[@AbdulJaleel-rd5ul]

Very good information.myself saved this video.

[@naseehaahamedkoya4962]

I always wanted to know the history of the calendar and wondered why Alex is not uploading a video on this so that I can follow easily and understand better. Wola, you just did it. You are a great story teller. Appreciate all of your efforts and may God bless you to reach great heights.

[@alexplain]

Thank you

[@tomyjohn4447]

Excellent piece of information. Explained in a lucid manner, this much bundle of knowledge. Congrats and all the best, Alex.

[@Nelson_Cochin]

Well said

[@Chris_john78]

Nice bro❤ fav channel

[@rajkiranb]

Good stuff after long time

[@noushadfmnoushad2632]

Wow muthe... 🎉

[@anushrees.panikkassery1194]

Packed with information and clarity in explanation is excellent

[@abysonjoseph]

Very informative. Thankyou so much

[@archanaravi1987]

Thank you for providing such informative content. In just 23 minutes, you managed to address all my doubts with clarity and simplicity. You made complex concepts easy to understand👍🏼👍🏼

[@meenubhaskern6400]

Sir this is not the exact reason for every 100 th yr(century ) is not a leap year but every 400 th yr is a leap year
It is because earth takes 365 days 48 min 46 sec for a complete revolution (it is slightly less than 365 days 6 hrs. So
every yr there is a shortage of 12 min. This has to be subtracted( 1200 min which is equal to 20 hrs and is equal to approx 1day ) in every century. And every 400 yrs 4+4+4+4 = 16 hrs aporox 1day ha to be added
So 2000, 2400, 2800 yrs are leap yrs be but not 1700,1800,1900,2100,2200 etc
Thanks

[@nahaspb5081]

എന്നാലും ആക്കാലത്തെ അവരുടെ ബുദ്ധി ഒന്ന് ആലോചിച്ചു നോക്ക്യേ 😳അവരെ സമ്മതിക്കണം 👍🏻
താങ്ക്സ് ബ്രോ താങ്കളുടെ വിവരണത്തിന് 😍

[@jyothishjoyan117]

Intresting ❤ & informative 🔥🔥

[@shibusnairvithura8158]

നല്ലറിവ് പങ്കുവച്ചതിന് നന്ദി

[@kunhiramanm2496]

Thank you sir. നല്ല നല്ല
അറിവുകൾ
പകർന്നുതന്നതിന്.,🎉🎉🎉

[@user-cv8ul6yf4n]

താങ്കൾ ലളിതമായി വിവരിച്ച വസ്തുതകൾപൂർണമായിഉൾക്കൊള്ളാൻഎനിക്ക് സാധിച്ചു നന്ദിനമസ്തേ
🙏👍👌🌹🌹🌹

[@alexplain]

Thank you

[@meenubhaskern6400]

Sir this is not the exact reason for every 100 th yr(century ) is not a leap year but every 400 th yr is a leap year
It is because earth takes 365 days 48 min 46 sec for a complete revolution (it is slightly less than 365 days 6 hrs. So
every yr there is a shortage of 12 min. This has to be subtracted( 1200 min which is equal to 20 hrs and is equal to approx 1day ) in every century. And every 400 yrs 4+4+4+4 = 16 hrs aporox 1day ha to be added
So 2000, 2400, 2800 yrs are leap yrs be but not 1700,1800,1900,2100,2200 etc
Thanks

[@comfoadvertisers3903]

Great Research, hats off

[@RenjithK-hc4so]

Thanks very much for your valuable information sr.

[@remyasudheer1032]

Thank you for this valuable knowledge

[@bijuramanilayam9650]

മികച്ച അറിവ് പകർന്ന് തന്നതിന് നന്ദി❤

[@sanoops916]

Very informative..thank you sir ❤

[@vivinjohny3391]

Good work bro.

[@vijoyjoseph9734]

Awesome!!

[@jimkaana]

Great presentation ❤🎉

[@Warlocke]

പതിവ് പോലെ തന്നെ, you nailed it ❤

[@alexplain]

Thank you

[@venusuvarna]

Very informative video. Thanks for sharing such a valuable information🙏

[@alexplain]

Thanks for liking

[@shijupunathil5347]

Well explained... Much Appreciated 👍

[@alexplain]

Thank you

[@aromal.a6273]

Awesome bro 🔥🔥🔥

[@VishnuVijayan-ci2uk]

Liked the video before watching. I can guess that you will post something informative. Now maintaining a notes for your videos too 😊

[@alexplain]

So nice of you

[@shibuvarghese6645]

Very well explained ....great presentation with clear logics and facts ... 🙏

[@alexplain]

Thank you

[@shibisaketh]

What a wonderful explanation ❤
Was doing this check in programs without understanding the logic😮
Thanks for your efforts 👏🏼

[@Nelson_Cochin]

Correct

[@MuhammadAslam-zb1uk]

Wow thanks sir 🎉

[@systemforge]

What an explanation ❤ woah

[@NandanaNavami-ft9qu]

Well explained 👍👍

[@user-ur4sq6cz6l]

Thanks for share this video

[@amruthapkamal2639]

Great information

[@meenusnair1997]

Wonderful explanation 🎉

[@ranju9446]

Informative and Excellent presentation

[@alexplain]

Thank you!

[@Ziyad._]

As usual, Superb 💐

[@alexplain]

Thanks a lot

[@mayboy5564]

Excellent video ❤❤

[@mercyjohn9279]

Great presentation 🙏🙏

[@febinjohn1984]

Being a leap year baby, this was always a fascinating topic for me... 😊 By the way I believe this is the reason (difference between Julian and Gregorian Calendar) for celebrating Xmas in January by some eastern Christians....

[@safdar8047]

Excellent presentation

[@user-ig6zv2nv7k]

Sthiram prekshakar
Present 👍
What ever may be the topic
presentation level 🔥🔥🔥

[@devidastu9335]

Very informative ❤

[@rajanveegee5588]

👍 well done.

[@Ak_Hil-]

വളരെ മികച്ച ഒരു അറിവ് ❣️.
2000 feb എനിക്ക് 2 വയസ്സ് ആയിരുന്നു. No idea about any thing 😁

[@muhammedsajid3227]

Well explained 💫

[@keerthikannan6793]

Thank you Alex

[@junujunaid6725]

Well explained 👍

[@krishnanunnimraj1675]

Thankyou for leap year explanation. I had also requested from your previous video. Thankyou so much sir ❤️

[@alexplain]

Most welcome

[@meenubhaskern6400]

Sir this is not the exact reason for every 100 th yr(century ) is not a leap year but every 400 th yr is a leap year
It is because earth takes 365 days 48 min 46 sec for a complete revolution (it is slightly less than 365 days 6 hrs. So
every yr there is a shortage of 12 min. This has to be subtracted( 1200 min which is equal to 20 hrs and is equal to approx 1day ) in every century. And every 400 yrs 4+4+4+4 = 16 hrs aporox 1day ha to be added
So 2000, 2400, 2800 yrs are leap yrs be but not 1700,1800,1900,2100,2200 etc
Thanks

[@nidhingirish5323]

ഇത് ഒരു വലിയ അറിവാണ് thank you 😊👍🏻

[@alexplain]

Welcome

[@mohammedbasil3841]

Bro needed a detailed video of CAA...Point out everything it will be helpful

[@sudeeppm3434]

Thanks a lot Alex🙏

[@alexplain]

Welcome

[@Athul_ya]

Perfect❤

[@alexplain]

Thanks

[@devu4240]

Good presentation alex.

[@alexplain]

Thank you

[@Riyaz-khalid]

Good presentation👍

[@emmanuelmaveli]

Good explanation

[@SiyahaAlhind]

പലരുടെയും താൽപര്യങ്ങൾക്ക് അനുസരിച്ച് മാറ്റങ്ങൾക്ക് വിധേയമായി മാറിയ ഈ കലണ്ടർ ഉൾകൊള്ളാൻ നമ്മൾ നിർബന്ധിതരായി

[@joythomasvallianeth6013]

A very informative video. At the same time many people are not aware of the origin of Kollavarsham. It came to be called so because it was started in Kollam. The starting of this calendar is linked to the arrival of the spice trader and Astronomer Marwan Sapir Iso from Edessa ( present day South Turkey) along with two bishops Mor Sabore and Mor Aphroth from Nineveh ( present day Mosul of Iraq) along with some families to Kollam in 823 AD. They built the Tharissappally church at Thevally in Kollam which was dedicated in August 824 AD. In commemoration of this event, the Kollavarsham was started based on a similar zodiac calendar being used in the romanised Mesopotamian region from where these people came. Thus we have Chingom or Simham for Leo or lion, Kanni or Kanniyaka for virgo or virgin etc. The local language used in Kollam in the 9th century was a form of old Tamil only and hence those terms.

[@beprepared988]

Well explained 🎉 Thank you

[@alexplain]

Welcome

[@hariprabhakaran4527]

Wonderful ❤

[@jithingeorge3334]

Informative

[@karthikkannan2075]

My name is alex, what i do is explain, welcome to alexplain! 🔥 The intro which makes us know that our next 20-30 mins are gonna really be fruitful🔥🤩

[@ranju3848]

സഹോദര നിങ്ങളുടെ ചാനല് കൊറോണ ടൈമിൽ ഞാൻ കാണുമ്പോൾ നിങ്ങൾക് കുറച്ചു സബ്സ്ക്രൈബ് മാത്രം ഉണ്ടായിരുന്നു ള്ളൂ.. ഇപ്പോൾ എന്ത് സംശയങ്ങളും നിങ്ങളുടെ ചാനല് കണ്ടാൽ വ്യക്തമാകും.. നിങ്ങളെപ്പോലെ ഒരു ടീച്ചർ ആണ് കുട്ടികൾ ക്ക് ആവശ്യം 👍👍👍

[@man_joz.95]

*Extremely informative* ❤

[@alexplain]

Thank you

[@elisabetta4478]

This content gave me fabulous knowledge. A huge thanks 😘

[@alexplain]

My pleasure

[@meenubhaskern6400]

Sir this is not the exact reason for every 100 th yr(century ) is not a leap year but every 400 th yr is a leap year
It is because earth takes 365 days 48 min 46 sec for a complete revolution (it is slightly less than 365 days 6 hrs. So
every yr there is a shortage of 12 min. This has to be subtracted( 1200 min which is equal to 20 hrs and is equal to approx 1day ) in every century. And every 400 yrs 4+4+4+4 = 16 hrs aporox 1day ha to be added
So 2000, 2400, 2800 yrs are leap yrs be but not 1700,1800,1900,2100,2200 etc
Thanks

[@azeemazeez8569]

Super Knowledge Transfer

[@abhishekrajeev8170]

Super bro ❤

[@art_cycle_r]

Superr broo❤❤❤

[@alexplain]

Thank you

[@sarathchandran8927]

Alex bro...thanks 🙏👍

[@alexplain]

Welcome

[@junaisvlog3783]

Good👍🏼👍🏼

[@prabeeshp4050]

Good information
Thanks ❤❤❤❤

[@alexplain]

Thanks

[@vishnuo1254]

Thank you sir😊

[@jasjinnu7719]

അടിപൊളി vedio ❤

[@aakashrs3328]

Adipoli ❤

[@sebbastiantharutharu9732]

I am interested to watch you video.
You select in topics ❤

[@alexplain]

Thank you

[@hassanseder3972]

Wonderful

[@jasjinnu7719]

Unexpected ആയി ജൂലിയസ് സീസർ എന്ന് കേട്ടപ്പോൾ ഒരു രോമാഞ്ചം 🥰