what are the oldest surviving scriptures from some sort of religion?

Question

and does it make any mention of some from of christianity?

Answer 1

If by "oldest surviving Scriptures" you are referring to the oldest CONTENT, esp. for a currently practiced religion, then the earliest is probably the Indian (Hindu) RigVeda, much of it from the 2nd millennium B.C., though it was for centuires passed on orally. The earliest written form of it is probably from about the 2nd century B.C. The Hebrew Bible (Christian Old Testament) overlaps this period, including material from the 1st and 2nd millenia B.C. and certainly written down (or at least most of it was) before any of the Indian Vedas.

I Ching, and the Avesta. In the case of the last two, they were transmitted orally for centuries before being written doing (e.g., the Avesta of the Zoroastrians may be pre-1000 B.C., but was not written down till perhaps A.D. 300).

http://www.sacred-texts.com/hin/index.htm#vedas
http://en.wikipedia.org/wiki/Rig_Veda
http://en.wikipedia.org/wiki/Avesta

If we look at religious texts for religions that have not survived, we have the ancient Egyptian and Mesopotamian writings if the second and third millenia B.C. recovered by archaeologists. Remember though that not every text that is at all religious was used as a "Scripture" (The "Epic of Gilgamesh" is certainly NOT a Scripture).
For a list of these "Bronze Age" writings see:
http://en.wikipedia.org/wiki/Early_Literature#Bronze_Age

The Egyptians texts begin with the Pyramid texts (2600=2300 B.C.) and Coffin texts (2000 B.C.), which were superseded in the mid 2nd millenium B.C., by the "Book of the Dead"
http://en.wikipedia.org/wiki/Book_of_the_Dead

Of course, most of the ancient Scriptures have been passed down, recopied over the centuries -- so though we have may have ancient CONTENT, we do not often have ancient manuscripts themselves. If this is what you are after, assuming we do not include the stone and clay inscriptions of Egypt and Mesopotamis mentioned above, the oldest Scriptural documents that have survived are many portions of the Hebrew Bible (Old Testament) found among the Dead Sea Scrolls. These manuscripts date from the 2nd century B.C. to the 1st century A.D. (Before this, according to the traditional chronology, the first of these Scriptures was written down in the time of Moses --mid-2nd millenium B.C.)
http://en.wikipedia.org/wiki/Dead_Sea_Scrolls#Date_and_contents

Actually, archaologists have also found parts of the Chinese I Ching --another text transmitted over many centuries-- form the 2nd century B.C., though of course the oral traditions behind the texts go back long before that. (A key contributor was Confucius, in the 6th century B.C.)
http://en.wikipedia.org/wiki/I_Ching#Western_.28.22Modernist.22.29_view


As for your question about the "mention of Christianity"-- keep in mind that "Christianity" as such could not even exist until the time of Jesus of Nazareth the man Christians believe to be the Christ. So it would make no sense for more ancient writings to provide a record about him or his followers before they were even born!

On the other hand, Christians believe that Christianity is a continuation and fulfilment of the Old Testament beliefs and expectations --so that the Hebrew "Old Testament" is also a part of the CHRISTIAN Bible and has an application to Christians. In particular, they believe that the Hebrew Scriptures prophesied the coming of Jesus, the Christ, many centuries before his birth --sometimes in very general ways, sometimes more specifically. For instance, as the Christ (Greek for the Hebrew Mashiach, "anointed one") he was expected to be a Son of King David, and perhaps also to act as a priest (kings and priests being the two "anointed" groups in Israel), as well as to come from Bethlehem (as David did). It is also believed that his unusual birth (of a virgin), his suffering, death and resurrection were spoken of in the books of the Prophets 400-700 years before his birth.

Answer 2

Some of the oldest literary works were from the Iraq known as Iraq today- Here is the Epic of Gilgamesh...interesting stuff. Way earlier than Christianity- and no mention of it as yet.