Well that's why I asked you to be more specific. The Hopi and the Iroquois for example have parallels to what Judaism and Christians believe, and the Lakota et al, believed in the Great Creator. As they did not have written revelation, they depended upon shamans and visions as the intermediary between them and this Creator. Perhaps some were real but not knowing any Indians and not frequenting sweat lodges, I can't make a ruling.
However, historians have lately taken an interest in indian accounts from the Indian wars, and I have read some concerning The Battle of the Little Bighorn. Though told years later to white people who wrote them down and now being published under other white people's names, I see no reason to discount them as history. The same goes for the slaves accounts of life on plantations. They had little reason to lie, sometimes their lives were still in jeopardy and they certainly probably never gained from it.
Or does the Bible get a "special pleading" pass on "eyewitness testimony?"
Well, since the EYEWITNESSES are all DEAD now, I guess this will have to do!!!
NIV Luke 1:1-2
1. Many have undertaken to draw up an account of the things that have been fulfilled among us,
2. just as they were handed down to us by those who from the first were eyewitnesses and servants of the word.
NIV Luke 24:45-48
45. Then he opened their minds so they could understand the Scriptures.
46. He told them, "This is what is written: The Christ will suffer and rise from the dead on the third day,
47. and repentance and forgiveness of sins will be preached in his name to all nations, beginning at Jerusalem.
48. You are witnesses of these things.
NIV Acts 1:20-22
20. "For," said Peter, "it is written in the book of Psalms, "`May his place be deserted; let there be no one to dwell in it,' and, "`May another take his place of leadership.'
21. Therefore it is necessary to choose one of the men who have been with us the whole time the Lord Jesus went in and out among us,
22. beginning from John's baptism to the time when Jesus was taken up from us. For one of these must become a witness with us of his resurrection."
NIV Acts 2:32
God has raised this Jesus to life, and we are all witnesses of the fact.
NIV Acts 3:15
You killed the author of life, but God raised him from the dead. We are witnesses of this.
NIV Acts 5:32
We are witnesses of these things, and so is the Holy Spirit, whom God has given to those who obey him."
NIV Acts 10:39-40
39. "We are witnesses of everything he did in the country of the Jews and in Jerusalem. They killed him by hanging him on a tree,
40. but God raised him from the dead on the third day and caused him to be seen.
41. He was not seen by all the people, but by witnesses whom God had already chosen--by us who ate and drank with him after he rose from the dead.
NIV Acts 13:30-32
30. But God raised him from the dead,
31. and for many days he was seen by those who had traveled with him from Galilee to Jerusalem. They are now his witnesses to our people.
NIV Acts 22:15
15. You will be his witness to all men of what you have seen and heard.
NIV Acts 26:15-18
15. "Then I asked, `Who are you, Lord?' "`I am Jesus, whom you are persecuting,' the Lord replied.
16. `Now get up and stand on your feet. I have appeared to you to appoint you as a servant and as a witness of what you have seen of me and what I will show you.
17. I will rescue you from your own people and from the Gentiles. I am sending you to them
18. to open their eyes and turn them from darkness to light, and from the power of Satan to God, so that they may receive forgiveness of sins and a place among those who are sanctified by faith in me.'
NIV 2 Timothy 2:1-2
1. You then, my son, be strong in the grace that is in Christ Jesus.
2. And the things you have heard me say in the presence of many witnesses entrust to reliable men who will also be qualified to teach others.
NIV Hebrews 12:1
1. Therefore, since we are surrounded by such a great cloud of witnesses, let us throw off everything that hinders and the sin that so easily entangles, and let us run with perseverance the race marked out for us.
NIV 1 Peter 5:1-3
1. To the elders among you, I appeal as a fellow elder, a witness of Christ's sufferings and one who also will share in the glory to be revealed:
2. Be shepherds of God's flock that is under your care, serving as overseers--not because you must, but because you are willing, as God wants you to be; not greedy for money, but eager to serve;
3. not lording it over those entrusted to you, but being examples to the flock.
NIV 2 Peter 1:16
We did not follow cleverly invented stories when we told you about the power and coming of our Lord Jesus Christ, but we were eyewitnesses of his majesty.