Changes

# अनुवत्सरः ॥ Anuvatsara

# अनुवत्सरः ॥ Anuvatsara

# इद्वत्सरः ॥ Idvatsara

# इद्वत्सरः ॥ Idvatsara

Yuga (युगम्) is one of the four large periods into which the basic Chaturyuga cycle is divided, it forms the basic Indian cycle of creation and destruction.   Yuga Pramana is calculated in terms of Human varshas and Divya varshas. Bhagavata Purana describes the concept of time and yugas (in Divya varshas) in the following verses<blockquote>कृतं त्रेता द्वापरं च कलिश्चेति चतुर्युगम् । दिव्यैर्द्वादशभिर्वर्षैः सावधानं निरूपितम् ॥ १८ ॥ (Bhag. Pura. 3.11.18)</blockquote><blockquote>चत्वारि त्रीणि द्वे चैकं कृतादिषु यथाक्रमम् । सङ्ख्यातानि सहस्राणि द्विगुणानि शतानि च ॥ १९ ॥ (Bhag. Pura. 3.11.19) <ref name=":3">Bhagavata Purana ([https://sa.wikisource.org/wiki/%E0%A4%B6%E0%A5%8D%E0%A4%B0%E0%A5%80%E0%A4%AE%E0%A4%A6%E0%A5%8D%E0%A4%AD%E0%A4%BE%E0%A4%97%E0%A4%B5%E0%A4%A4%E0%A4%AA%E0%A5%81%E0%A4%B0%E0%A4%BE%E0%A4%A3%E0%A4%AE%E0%A5%8D/%E0%A4%B8%E0%A5%8D%E0%A4%95%E0%A4%A8%E0%A5%8D%E0%A4%A7%E0%A4%83_%E0%A5%A9/%E0%A4%85%E0%A4%A7%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%AF%E0%A4%83_%E0%A5%A7%E0%A5%A7 Skanda 3 Adhyaya 11])</ref></blockquote>Meaning : The four yugas are namely Krta, Treta, Dvapara and Kali consisting of 12,000 divya varshas, in the order of 4000, 3000, 2000, and 1000 divya years respectively.  

Yuga (युगम्) is one of the four large periods into which the basic Chaturyuga cycle is divided, it forms the basic Indian cycle of creation and destruction. Yuga Pramana is calculated in terms of Human varshas and Divya varshas. Bhagavata Purana describes the concept of time and yugas (in Divya varshas) in the following verses<blockquote>कृतं त्रेता द्वापरं च कलिश्चेति चतुर्युगम् । दिव्यैर्द्वादशभिर्वर्षैः सावधानं निरूपितम् ॥ १८ ॥ (Bhag. Pura. 3.11.18)</blockquote><blockquote>चत्वारि त्रीणि द्वे चैकं कृतादिषु यथाक्रमम् । सङ्ख्यातानि सहस्राणि द्विगुणानि शतानि च ॥ १९ ॥ (Bhag. Pura. 3.11.19) <ref name=":3">Bhagavata Purana ([https://sa.wikisource.org/wiki/%E0%A4%B6%E0%A5%8D%E0%A4%B0%E0%A5%80%E0%A4%AE%E0%A4%A6%E0%A5%8D%E0%A4%AD%E0%A4%BE%E0%A4%97%E0%A4%B5%E0%A4%A4%E0%A4%AA%E0%A5%81%E0%A4%B0%E0%A4%BE%E0%A4%A3%E0%A4%AE%E0%A5%8D/%E0%A4%B8%E0%A5%8D%E0%A4%95%E0%A4%A8%E0%A5%8D%E0%A4%A7%E0%A4%83_%E0%A5%A9/%E0%A4%85%E0%A4%A7%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%AF%E0%A4%83_%E0%A5%A7%E0%A5%A7 Skanda 3 Adhyaya 11])</ref></blockquote>Meaning : The four yugas are namely Krta, Treta, Dvapara and Kali consisting of 12,000 divya varshas, in the order of 4000, 3000, 2000, and 1000 divya years respectively.  

The earliest reference to a mahayuga's division into 4 yugas is found in the Aitereya Brahmana belonging to the Rig Veda.  <blockquote>कलिः शयानो भवति संजिहानस्तु द्वापरः। उत्तिष्ठंस्त्रेता भवति कृतं सम्पद्यते चरंश् चरैवेति चरैवेति... (Aite. Brah. 7.15)<ref>Aitereya Brahmana ([https://sa.wikisource.org/wiki/%E0%A4%90%E0%A4%A4%E0%A4%B0%E0%A5%87%E0%A4%AF_%E0%A4%AC%E0%A5%8D%E0%A4%B0%E0%A4%BE%E0%A4%B9%E0%A5%8D%E0%A4%AE%E0%A4%A3%E0%A4%AE%E0%A5%8D/%E0%A4%AA%E0%A4%9E%E0%A5%8D%E0%A4%9A%E0%A4%BF%E0%A4%95%E0%A4%BE_%E0%A5%AD_(%E0%A4%B8%E0%A4%AA%E0%A5%8D%E0%A4%A4%E0%A4%AE_%E0%A4%AA%E0%A4%9E%E0%A5%8D%E0%A4%9A%E0%A4%BF%E0%A4%95%E0%A4%BE) Panchika 7])</ref></blockquote>Thus, the concept of four yugas is vedic in origin, although the exact measure is not mentioned we rely on the Puranas and other texts.   

The earliest reference to a mahayuga's division into 4 yugas is found in the Aitereya Brahmana belonging to the Rig Veda.  <blockquote>कलिः शयानो भवति संजिहानस्तु द्वापरः। उत्तिष्ठंस्त्रेता भवति कृतं सम्पद्यते चरंश् चरैवेति चरैवेति... (Aite. Brah. 7.15)<ref>Aitereya Brahmana ([https://sa.wikisource.org/wiki/%E0%A4%90%E0%A4%A4%E0%A4%B0%E0%A5%87%E0%A4%AF_%E0%A4%AC%E0%A5%8D%E0%A4%B0%E0%A4%BE%E0%A4%B9%E0%A5%8D%E0%A4%AE%E0%A4%A3%E0%A4%AE%E0%A5%8D/%E0%A4%AA%E0%A4%9E%E0%A5%8D%E0%A4%9A%E0%A4%BF%E0%A4%95%E0%A4%BE_%E0%A5%AD_(%E0%A4%B8%E0%A4%AA%E0%A5%8D%E0%A4%A4%E0%A4%AE_%E0%A4%AA%E0%A4%9E%E0%A5%8D%E0%A4%9A%E0%A4%BF%E0%A4%95%E0%A4%BE) Panchika 7])</ref></blockquote>Thus, the concept of four yugas is vedic in origin, although the exact measure is not mentioned we rely on the Puranas and other texts.   

Kalpa is the period of one thousand Chaturyugas or Mahayugas, forming a day of Brahma. Surya Siddhanta describes as follows  <blockquote>युगानां सप्ततिस्सैका मन्वन्तरमिहोच्यते । कृताब्दसङ्ख्या तस्यान्ते प्रोक्तो जलप्लवः ॥ (Sury. Sidd. 1.18)</blockquote><blockquote>ससन्धयस्ते मनवः कल्पे ज्ञेयाश्चतुर्दश  । कृतप्रमाणः कल्पादौ संधिः पञ्चदश स्मृताः ॥ (Sury. Sidd. 1.19)</blockquote>Summary : 71 Mahayugas (containing 306,720,000 solar years) constitute a Manvantara (ruled by a Manu). At the end of it, in the number of solar years (17,28,000 solar years) equal to that of the Krtayuga (called as Sandhi period) a Jalaplava or a universal deluge is said to happen. Fourteen such Manu periods along with the Sandhi periods and the fifteenth sandhi at the beginning, having the same number of years as the Krtayuga constitute a Kalpa.<ref name=":5" />

Kalpa is the period of one thousand Chaturyugas or Mahayugas, forming a day of Brahma. Surya Siddhanta describes as follows  <blockquote>युगानां सप्ततिस्सैका मन्वन्तरमिहोच्यते । कृताब्दसङ्ख्या तस्यान्ते प्रोक्तो जलप्लवः ॥ (Sury. Sidd. 1.18)</blockquote><blockquote>ससन्धयस्ते मनवः कल्पे ज्ञेयाश्चतुर्दश  । कृतप्रमाणः कल्पादौ संधिः पञ्चदश स्मृताः ॥ (Sury. Sidd. 1.19)</blockquote>Summary : 71 Mahayugas (containing 306,720,000 solar years) constitute a Manvantara (ruled by a Manu). At the end of it, in the number of solar years (17,28,000 solar years) equal to that of the Krtayuga (called as Sandhi period) a Jalaplava or a universal deluge is said to happen. Fourteen such Manu periods along with the Sandhi periods and the fifteenth sandhi at the beginning, having the same number of years as the Krtayuga constitute a Kalpa.<ref name=":5" />

A Kalpa is thus divided into 14 [[Manvantaras (मन्वन्तराणि)]], and there is a Manu, the patriarch, of each of the 14 Manvantaras. The list of Manus who were the rulers in different Manvantaras is given variously in different Puranas. Bhagavata Purana mentions as follows  <blockquote>त्रिलोक्या युगसाहस्रं बहिराब्रह्मणो दिनम् । तावत्येव निशा तात यन्निमीलति विश्वसृक् ॥ २२ ॥ (Bhag. Pura. 3.11.22)</blockquote><blockquote>निशावसान आरब्धो लोककल्पोऽनुवर्तते । यावद्दिनं भगवतो मनून् भुञ्जंश्चतुर्दश ॥ २३ ॥(Bhag. Pura. 3.11.23)<ref name=":3" /> </blockquote>Summary : A day of Brahma consists of one thousand cycles of four yugas (when creation proceeds). The night is also of the same duration when Brahma withdraws from creation (and is said to be in sleep). At the end of the night (cyclic time) the creation of the world (Kalpa) starts and proceeds so long as it is Brahma's day which covers the time period of fourteen Manus.  

A Kalpa is thus divided into 14 [[Manvantaras (मन्वन्तराणि)]], and there is a Manu, the patriarch, of each of the 14 Manvantaras. The list of Manus who were the rulers in different Manvantaras is given variously in different Puranas. Bhagavata Purana mentions as follows  <blockquote>त्रिलोक्या युगसाहस्रं बहिराब्रह्मणो दिनम् । तावत्येव निशा तात यन्निमीलति विश्वसृक् ॥ २२ ॥ (Bhag. Pura. 3.11.22)</blockquote><blockquote>निशावसान आरब्धो लोककल्पोऽनुवर्तते । यावद्दिनं भगवतो मनून् भुञ्जंश्चतुर्दश ॥ २३ ॥ (Bhag. Pura. 3.11.23)<ref name=":3" /> </blockquote>Summary : A day of Brahma consists of one thousand cycles of four yugas (when creation proceeds). The night is also of the same duration when Brahma withdraws from creation (and is said to be in sleep). At the end of the night (cyclic time) the creation of the world (Kalpa) starts and proceeds so long as it is Brahma's day which covers the time period of fourteen Manus.  

  1 Kalpa = 1 Day of Brahma

  1 Kalpa = 1 Day of Brahma