One of the more remarkable theories by skeptics of Christianity over the last century is that Jesus Christ never even existed. Fortunately, the historical record is quite clear, and the actual existence of this man in history is well documented by ancient historical standards.
In a forthcoming article in Biblical Archaeology Review Dr. Lawrence Mykytiuk, a professor at Purdue University, carefully summarizes and discusses the historical evidence for Jesus in early non-Christian sources. This article is well-documented, with two-thirds of the published web-page dedicated to footnotes verifying or explaining his conclusions and broader scholarly debates. (It isn’t actually new information, but is an easy-to-understand and thorough discussion.)
You can read Mykytiuk’s whole article here, but based on reading and analysis of non-Christian sources, the following facts about Jesus can be known from two prominent ancient historians who briefly mention Jesus (and excluding dubious changes to those historians’ writings).
What do we know about Jesus?
- He existed as a man [Josephus and Tacitus]…
- His personal name was Jesus, as Josephus informs us.
- He was called Christos in Greek, which is a translation of the Hebrew word Messiah, both of which mean “anointed” or “(the) anointed one,” as Josephus states and Tacitus implies…
- He had a brother named James (Jacob), as Josephus reports.
- He won over both Jews and “Greeks” (i.e., Gentiles of Hellenistic culture), according to Josephus…
- Jewish leaders of the day expressed unfavorable opinions about him…
- Pilate rendered the decision that he should be executed, as both Tacitus and Josephus state.
- His execution was specifically by crucifixion, according to Josephus.
- He was executed during Pontius Pilate’s governorship over Judea (26–36 C.E.), as Josephus implies and Tacitus states, adding that it was during Tiberius’s reign.
While there is no good reason, historically speaking, to exclude Christian writings (such as those in the New Testament or by early church fathers), the non-Christian evidence about the historical facts of Jesus’ life and death is clear, despite the small number of people who claim otherwise.
 It is worth noting that several of Mukutiuk’s conclusions parallel those of two Christian apologists who focus on the resurrection of Jesus. Gary Habermas developed the “minimal facts” approach to the resurrection, and with Michael Licona has written extensive scholarly work on this question (see examples here and here.