141: Mar 20 6th recorded perihelion passage of Halley's Comet

185: Dec 7 Emperor Lo-Yang, China sees supernova (MSH15-52)

208: King Vologases-Vi succeeds his father Vologases V to the throne. His brother Artabanus-V begins
a rebellion against him in the Parthian Empire.

240: The Roman Empire is threatened on several fronts at the same time. Africa revolts and tribes
in northwest Germania, under the name of the Franks, are raiding the Rhine frontier.

270: Anthony the Great, a Christian saint from Egypt, regarded as Father of All Monks, enters the
wilderness to become ascetic.

300: The magnetic compass for navigation is invented in China (approximate date).

325: First Council of Nicaea: Constantine I summons an ecumenical council of bishops in Nicaea
(Turkey). The Nicene Creed declares that the members of the Trinity (the Father, the Son, and the
Holy Spirit) are equal. The council decides that Easter is celebrated on the first Sunday after
the first full moon after the vernal equinox.

345: Constans orders the Basilica di Santa Tecla to be constructed in Lombardy.

364: Valens, brother of Valentinian I, is appointed co-emperor (Augustus) in the palace of Hebdomon
(Turkey). He rules the Eastern Roman Empire, from the Danube to the Persian border, and begins the
first anti-pagan persecutions.

439: Litorius, Roman general (Magister militum per Gallias), lays siege to Toulouse. During the
decisive battle before the walls he suffers a severe defeat and is killed, and only the heavy loss
of Visigoths makes King Theodoric I decide to agree to a provisional restoration of the status quo.

4400bc: In Egypt, copper sewing needles are first used.