Yes. Both Josephus' 'Antiquities' and the Roman historian, Tacitus, mention Jesus:
Jesus, Wise Man and Teacher: Antiquities 18.3.3 "Now there was about this time Jesus, a wise man, (if it be lawful to call him a man,) for he was a doer of wonderful works, a teacher of such men as receive the truth with pleasure. He drew over to him both many of the Jews, and many of the Gentiles. (He was the Christ;) and when Pilate, at the suggestion of the principal men amongst us, had condemned him to the cross, those that loved him at the first did not forsake him, (for he appeared to them alive again the third day,) as the divine prophets had foretold these and ten thousand other wonderful things concerning him; and the tribe of Christians, so named from him, are not extinct to this day."
Concerning the darknest scene mentioned above, Julius Africanus,
writing c. 221, while writing about the crucifixion of Jesus, mentioned Thallus. Thus:
On the whole world there pressed a most fearful darkness; and the rocks were rent by an earthquake, and many places in Judea and other districts were thrown down. This darkness Thallus, in his third book of History, calls (as appears to me without reason) an eclipse of the sun.
Yes, eyewitnesses.
Yes, there are multiple accounts in the Bible where witnesses, including the apostles and other followers of Jesus, claim to have seen him alive after his crucifixion, providing testimony to his resurrection.
AnswerThe Pharisees believed in the resurrection of the virtuous, at the end of time. What they did not believe was that Jesus was resurrected, nor that any of the pagan gods died and was resurrected.
The four gospels and Acts of the Apostles provide various different versions of Jesus meeting some of his followers after his resurrection, but none of them makes any mention of any independent witnesses ever seeing Jesus with any of his followers.
There is no extra-biblical evidence that Jesus ascended to heaven.
He was dead. How much treatment of any kind can you get then?
The New Testament
No, according to Christian belief, Jesus was not reincarnated after his crucifixion. Christians believe in the resurrection of Jesus, where he rose from the dead and ascended into heaven.
No. The gospel accounts of Jesus' birth do no mention any season.
There is no historical evidence or widely accepted theories that suggest Jesus died in Japan. The traditional belief is that Jesus was crucified in Jerusalem.
If a church believes that the Bible is true then it will believe in the resurrection. Also, since the resurrection is an essential Christian doctrine and the Christian faith is meaningless without it, you could not disbelieve it and still be considered Christian in any sense.
There is no evidence in Scripture or any outside sources that Jesus visited or spent time at the Qumran community.