Year 201 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Lentulus and Paetus (or, less frequently, year 553 Ab urbe condita). The denomination 201 BC 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.
Following the conclusion of the peace with Rome, Hannibal is elected as suffet, or chief magistrate, of Carthage. The office has over the years become insignificant in Carthaginian politics, but Hannibal restores its power and authority. He sets out to reform the administration and finances of Carthage and reduce the power of the oligarchy which has ruled Carthage before and during the Second Punic War.
The Spartan king, Nabis, once more invades and captures Messene. However, the Spartans are forced to retreat when the Achaean League army of Philopoemen intervenes. Nabis' forces are decisively defeated at Tegea by Philopoemen and Nabis is forced to check his expansionist ambitions for the time being.