The Gathas are the hymns composed by Zarathushtra, the Prophet or the founder of the religion of ancient Iran, who lived around 1300 BCE.
This is the first time I have ever seen the date “1300 BCE” reference Zarathustra’s birth, which I strongly disagree due to a lack of evidence. Likewise, If Zarathustra had lived in 1300 BCE, then the Religion would have spread from that Origin point and not from the 600 BCE, when it did with Cyrus I to birth Philosophy.
We must always remember to prioritize Truth over Ego.
Always.