Maybe there was, but none of them left a record and we can not identify any of those witnesses anyway. Well, there is no evidence of the event either. We have no eye witness accounts for anything in the life of Jesus.
...So, for example, the reason we know that the little girl Jesus raised from the dead was “the daughter of Jairus” is
because Jairus himself is the eyewitness source of the story; presumably, Jairus joined the Christian movement, and then told his story (and was frequently asked to tell his story) within the Christian movement, and very naturally became an eyewitness source when it came time to write down the Gospels. There are other examples.
A number of prominent Bible scholars believe that Richard Bauckham’s book
Jesus and the Eyewitnesses just might be the most important book of New Testament scholarship in many decades–the kind of paradigm-shifting work that will be ignored by most current scholars and only taken up by a new generation, as science advances “one funeral at a time”.
In a word, the book argues that the Gospels are books of oral history; in other words, that they are based on the direct accounts of specific, named eyewitnesses to the life and ministry of Jesus. This is contrary to the assumption of most New Testament scholarship, drawn from the form criticism of the early 20th century, that the Gospels are works of oral
tradition, in other words collections of anonymous traditions passed down through many iterations between the actual witnesses and the writers of the Gospels.
Book Review: Richard Bauckham, “Jesus and the Eyewitnesses”
We actually more about Jesus beliefs than Caesar's because while Caesar express some ideas Jesus is quoted by his followers in a full body of teaching that covers many aspects. Since the Jews had an oral culture in which they memoirs the words of their teachers and spit them back ver batum we probably do have a good accurate understanding of Jesus' teachings, at least as they were applied by his first follows a few years
after the communities were established. Oral tradition was not just wild random rummer but actuate reflection of the teacher through the student's memorization.
It worked and there is a great deal of evidence to that effect.
We have the attestation of Papias, his writings dated bewteen
95 and 120 AD. That he sure was before the third century.
Clement of Rome is said to have been writing around 94 AD.
Polycarp's death is attributed to 155 AD..The point is all of these guys attest to the resurrection and all of them claim to have had ties with actual disciples and Apostles who knew Jesus. One might argue that they are not established historians but the historians of that era were not academically trained social scientists they were just any educated person who wrote about what happened in the past these guys have a link to the eye witness testimony that has to outweigh the onus of being "church historians."
A method commonly used today to determine the historicity of an event is "inference to the best explanation." We "begin with the evidence available to us and then infer what would, if true, provide the best explanation of that evidence." In other words, we ought to accept an event as historical if it gives the best explanation for the evidence surrounding it.
When we look at the evidence, the truth of the resurrection emerges very clearly as the best explanation. There is no other theory that even come close to accounting for the evidence. Therefore, there is solid historical grounds for the truth that Jesus Christ rose from the dead.