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| 427 (431) |
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| The dictator A. Postumius Tubertus decisively defeated the Aequi at the Algidus Pass. | 1 |
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| 392 )396) |
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| The seige of Veii, during which pay for the Roman army was allegedly introduced, was ended when the dictator M. Furius Camillus captured and destroyed the city. Veian territory was annexed and Roman territory doubled. | 2 |
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| 386 (390) |
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| Rome was sacked by the Gauls under Brennus, who defeated the Roman army on the Allia on July 18. | 3 |
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| 363 (367) |
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| Licinio-Sextian Laws. After ten years of agitation, the tribunes C. Licinius and L. Sextius passed a reform package which probably included: (1) some sort of debt relief; (2) a limit of 500 iugera (one iugerum=five-eighths of an acre) as the amount of ager publicus (public land) that any citizen could hold, and (3) abolition of the office of consular tribunes and restoration of the consulship now opened to plebeians. The office of praetor urbanus was created. Two patrician curule aediles were created with functions much like that of the plebeian aediles. | 4 |
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| 363–345 (367–349) |
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| Four wars were fought with Gauls who raided central Italy, during which T. Manlius Torquatus in 357 (361) and M. Valerius Corvus in 345 (349) defeated Gallic champions in single combat. | 5 |
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| 358–341 (362–345) |
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| Wars were fought with the Hernici and some Latin cities. The latter were forced into the Latin League 354 (358). The foedus Cassianum was renewed. | 6 |
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| 344 (348) |
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| The second treaty between Rome and Carthage, which some consider to be the first, was struck (See 600–322). | 7 |
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| 339–337 (343–341) |
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| The First Samnite War was started by a request for aid by Campanians against the Samnites. After minor Roman victories, the war ended in a draw. | 8 |
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| 337–334 (341–338) |
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| The Latin War began with the revolt of Latin cities against Roman domination of the league. In 336 (340) the consul P. Decius Mus sacrificed himself to the gods to ensure a victory (devotio). Roman victory was secured at the Battle of Trifanum. | 9 |
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