Editing AD 142 (section)

== Events ==
<onlyinclude>

=== By place ===
==== Roman Empire ====
* Emperor [[Antoninus Pius]] orders the construction of the [[Antonine Wall]]. The wall stretches 39 miles (63 km), from [[Old Kilpatrick]] in [[West Dunbartonshire]] on the [[Firth of Clyde]], to Carriden near [[Bo'ness]] on the [[Firth of Forth]] ([[Scotland]]). The Romans build 19 [[castra|forts]] and smaller fortlets ([[milecastle]]s), to protect the border against the [[Caledonians]]. 
* Municipal [[physicians|doctors]] are named throughout the [[Roman Empire]].

==== Asia ====
* First year of the ''Hanan'' era of the Chinese [[Han dynasty|Han Dynasty]].
* The Chinese [[Taoist]] [[Chinese alchemy|alchemist]] [[Wei Boyang]], author of the ''[[Kinship of the Three]]'', is the first to describe an early form of [[gunpowder]] solution.

=== By topic ===
==== Religion ====
* [[Marcion]] proclaims that the [[Old Testament]] is incompatible with [[Christianity]].
</onlyinclude>