  People have probably been watching the sky since the beginning of human
history. Observers in pre-telescopic ages recorded anomalous events and these
astronomical records in the historical documents provide uniquely valuable
information for modern scientists. Records with drawings are particularly
useful, as the verbal expressions recorded by pre-telescopic observers, who did
not know the physical nature of the phenomena, are often ambiguous. However,
drawings for specific datable events in the historical documents are much fewer
than the verbal records. Therefore, in this paper, we show the possible
earliest drawings of datable auroras and a two-tail comet in a manuscript of
the Chronicle of Z\=uqn\=in, a Syriac chronicle up to 775/776 CE to interpret
their nature. They provide not only the historical facts in the realm around
Amida but also information about low-latitude aurora observations due to
extreme space weather events and the existence of sun-grazing comets.
