http://www.allaboutturkey.com/persians.htm

https://www.britannica.com/biography/Zarathustra

https://en.wikipedia.org/wiki/Zoroaster

http://www.ancient-origins.net/news-history-archaeology/archaeologists-find-12000-year-old-pictograph-gobeklitepe-003441
https://books.google.com/books?id=q1koDwAAQBAJ&pg=PT232&lpg=PT232&dq=gobekli+tepe+zoroaster&source=bl&ots=Cz4AnpYB7S&sig=YiY-nFJGZ15XbLUvX-O1TauxX8A&hl=en&sa=X&ved=0ahUKEwjo1I3o-a3ZAhURVa0KHXPrAXYQ6AEILzAB#v=onepage&q=gobekli%20tepe%20zoroaster&f=false