calculation of time period in past that is during
the time of Rishi Angiras and Gautam were
a lot different. Time calculation in past was
done according to Manvantar, Yugs and Kalp.
in present there are different opinions related
to birth of Lord Ram. No one can calculate the
birth year of Brahma and other Rishis.
are 14 Manvantars out of which 6 have passed and
this is seventh Manvantar no person can exactly
say which rishi was born in which Manvantra and
the Ved's existed in which Manvantar.
theories also says that Ved's are around 5000
or +5000 B.C.E. years old but the fact is that
Ved's are a lot older then what we all assume.
people have tried and calculated the birth year
of Brahma and other Rishis but it cannot be said
to be true as no person exactly knows how to calculate
ancient time method to decide the birth year of
Brahma and other Rishis.
explanation Manvantar is given in also given in
Bhagwat, Bramha puran and Vishnu puran. In Bhagwat
the presence of Rishi Angiras, Gautam, Ahilya,
Vamdev, etc is mentioned.
have made a family tree from Bramha till Kripacharya
and from Umang's son Jit till Idhar Vyas but in-between
who was born we will never be able to find the
missing link as we don't have names above Idhar
Vyas and we don't know that out of Gautam Rishis
3 sons Vamdev, Nodha and Shatanand whose line
we come from because Gautam Rishi and his sons
can be born in any Manvantara.
Angiras family tree based on the names of Rishis
and their father name which is mentioned in Ved's
as well as in other Scriptures.
Purans and other Scriptures mentions the time
but they have used a different method like Manvantar,
Yugs and kalp using this method can be misleading
in present and hence we are not using the birth
year of any Rishis and time period of existence
of Ved's, Shatpath Brahman, etc.