"Everybody knows" that Newton and Kepler calculated the age of the earth. My problem is that, whilst "everybody knows" this, no-one gives a reference that I can read for myself.
If, for example, I want to read what Thomas Burnett believed, I download a copy of Telluris Theoria Sacra and I can read for myself that he accepted the reality of Noah's flood. The same is true of St Augustine's beliefs as there are several online translations of City of God Against the Pagans.
But Newton and Kepler?
Zilch. Sweet F.A. Absolutely nothing.
Even when a website references a text, either I can't find the text, or there is no age-of-the-earth calculation in the text that I can find.
So, did either Newton or Kepler calculate the age of the earth, or is this just an urban myth? If it's true, does anyone have references that I can look at for myself. These will have to be secondary references (English translations) as I expect the actual primary reference to be in Latin, and sadly, I only read English.