The darkness at the crucifixion
AuthenticityKnown through a quotation
The Christian chronographer Julius Africanus (about 221), discussing the darkness at the crucifixion, writes: "This darkness Thallus, in the third book of his History, calls, as appears to me without reason, an eclipse of the sun." Thallus was not a Christian. If Africanus reports him rightly, a non-Christian historian knew of a darkness tradition and, rather than deny it, offered a natural explanation for it. Many scholars date Thallus around 50 CE, which would make him an early witness. Africanus himself answered Thallus' explanation: a solar eclipse is impossible at the full moon of Passover.
Known through a quotation. Thallus' own words are lost. What survives is Africanus' paraphrase, itself preserved by George Syncellus (9th century), so the report comes at third hand. At most it shows that a non-Christian writer knew a darkness tradition and explained it naturally.
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We cannot tell whether Thallus mentioned Jesus at all, or simply recorded an eclipse that Africanus later connected with the crucifixion. The link to Jesus is Africanus' own. Thallus' date is also unknown: besides the commonly proposed date of about 50 CE, the surviving notes on his history have been read as giving it an end-point of 109 BCE, or possibly 49-52 or 89-93 CE. An early date cannot be assumed.