阳金马年 (male Iron-Horse) 257 or −124 or −896 — to — 阴金羊年 (female Iron-Goat) 258 or −123 or −895
Year 131 (CXXXI) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Laenas and Rufinus (or, less frequently, year 884 Ab urbe condita). The denomination 131 for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
The Praetor's Edict is definitively codified by Salvius Julianus, on Hadrian's orders. This change means that senatorial decrees become a mere confirmation of the imperial speech (oratio principis) which initiated them.
Reorganization of the Imperial Council: Central administration is reinforced, and administrative positions are entrusted to knights, according to a very strict hierarchy. Under the reorganization, the Roman Senate is excluded from controlling the business of state.
Hadrian restores the monarchist policy of Claudius and Domitian. The equestrian order is given full legal status, and attains the second order of the state.
Italy is divided into legal districts managed by consuls, a direct blow to the power and prestige of the Senate.
By topic
Religion
The Edict of Hadrian prohibits the practice of circumcision. Additionally, Hadrian prohibits public reading of the Torah under penalty of death, as well as observance of festivals and the Sabbath, the teaching of Judaic Law, and the ordination of rabbis.