Quintus Asconius Pedianus, Commentarii [In Pisonem]  1C   (ca. A.D. 40):


Haec oratio dicta est Cn.  Pompeio Magno II M.  Crasso II coss.  ante paucos dies quam Cn.  Pompeius ludos faceret quibus theatrum a se factum dedicavit.  Hoc intellegi ex ipsius Ciceronis verbis potest quae in hac oratione posuit.  Dixit enim sic: Instant post hominum memoriam apparatissimi magnificentissimique ludi.  * * * quidem posuit hanc inter eas orationes quas dixit Cicero L.  Domitio Appio Claudio coss.  ultimam.  Sed ut ego ab eo dissentiam facit primum quod Piso reversus est ex provincia Pompeio et Crasso consulibus, Gabinius Domitio et Appio: hanc autem orationem dictam ante Gabini reditum ex ipsa manifestum est.  Deinde magis quidem naturale est ut Piso recenti reditu invectus sit in Ciceronem responderitque insectationi eius qua revocatus erat ex provincia quam post anni intervallum.  Apparet autem Ciceronem respondisse Pisoni.  In summa, cum dicat in ipsa oratione Cicero instare magnificentissimos apparatissimosque ludos, non video quo modo hoc magis Domitio et Appio coss.  dictum sit, quibus consulibus nulli notabiliores ludi fuerunt, quam Pompeio et Crasso, quo anno Pompeius exquistissimis magnificentissimisque omnis generis ludis theatrum dedicavit. 

This speech [In Pisonem] was delivered in the year when Pompeius and Marcus Crassus were consuls for the second time, a few days before Pompeius was to hold the games with which he inaugerated the theater that he had built.  This can be discovered from the words that Cicero himself put into his speech, namely: "The most lavish and splendid games are about to take begin..." Now admittedly * * * places the speech last of those that Cicero delivered in the consulship of Lucius Domitius and Appius Claudius.  What forces me to disagree with him is first the fact that Piso returned from his province when Pompeius and Crassus were consuls, while Gabinius did so in the consulship of Domitius Appius; and clearly this speech was delivered before Gabinius came home.  Secondly, Piso would more naturally have attacked Cicero soon after his return (and replied to the harassment which had led to his recall) rather than after a year had passed.  And it seems that Cicero did respond to Piso's rhetoric.  In brief, when Cicero says in this speech that the "most lavish and splendid games are about to begin," it is much more likely that they took place in Pompeius' and Crassus' consulship, when Pompeius dedicated his theater, with the most lavish and exquisite games possible, than during the year of Domitius and Appius, when there were no particularly noteworthy games.  (S.  Squires, trans.)