Editing Timeline of Roman history (section)

== 3rd century BC ==
{| class="wikitable" width="100%"
! style="width:6%" | Year || style="width:10%" | Date || Event
|-
| {{dr|y|y|-300|0|ysa}} || || The ''[[Lex Ogulnia]]'' was passed, allowing [[plebs|plebeians]] to become priests.
|-
| rowspan="2" valign="top" | {{dr|y|y|-298|0|ysa}} || || ''Samnite Wars'': Rome declared war on the [[Samnites]] after an appeal by the [[Lucani (ancient people)|Lucani]].
|-
| || ''Samnite Wars'': Rome captured the [[Samnites|Samnite]] cities of [[Bojano]] and [[Castel di Sangro]].
|-
| {{dr|y|y|-297|0|ysa}} || || ''[[Battle of Tifernum]]'': A Roman army defeated a numerically superior [[Samnites|Samnite]] force at [[Città di Castello]].
|-
| {{dr|y|y|-295|0|ysa}} || || ''[[Battle of Sentinum]]'': A Roman army decisively defeated a numerically superior force of [[Samnites]], [[Etruscan civilization|Etruscans]], [[Umbri]] and [[Senones]] in coalition at [[Sentinum]].  The [[Roman consul|consul]] [[Publius Decius Mus (consul 312 BC)]] was killed.
|-
| {{dr|y|y|-294|0|ysa}} || || ''Samnite Wars'': Roman and [[Samnites|Samnite]] forces battled at [[Lucera]].
|-
| rowspan="2" valign="top" | {{dr|y|y|-293|0|ysa}} || || ''[[Battle of Aquilonia]]'': A Roman army destroyed the majority of [[Samnites|Samnite]] forces, probably in modern [[Agnone]].
|-
| || A census counted about 270,000 residents of Rome.
|-
| {{dr|y|y|-291|0|ysa}} || || ''Samnite Wars'': Rome conquered and colonized the [[Samnites|Samnite]] city of [[Venosa]].
|-
| {{dr|y|y|-290|0|ysa}} || || ''Samnite Wars'': The last effective [[Samnites|Samnite]] resistance was eliminated.
|-
| rowspan="2" valign="top" | {{dr|y|y|-287|0|ysa}} || || ''[[Conflict of the Orders]]'': A ''[[secessio plebis]]'' took place.
|-
| || ''Conflict of the Orders'': The ''[[Lex Hortensia]]'' was passed, made resolutions of the [[Plebeian Council]] ([[plebiscites]]) binding on all Romans, they formally only applied to plebeians.<ref>{{Cite web|url=http://www.oxfordreference.com/|title=Oxford Reference - Answers with Authority|website=www.oxfordreference.com|language=en|access-date=2018-12-15}}</ref>
|-
| {{dr|y|y|-283|0|ysa}} || || ''[[Battle of Lake Vadimo (283 BC)]]'': A Roman army defeated a combined force of [[Etruscan civilization|Etruscans]], [[Boii]] and [[Senones]] near [[Lake Vadimo]].
|-
| {{dr|y|y|-281|0|ysa}} || || [[Taranto]] appealed to [[Epirus (ancient state)|Epirus]] for aid against Rome.
|-
| rowspan="2" valign="top" | {{dr|y|y|-280|0|ysa}} || || ''[[Pyrrhic War]]'': An [[Epirus (ancient state)|Epirote]] army of some 25,000 landed at [[Taranto]].
|-
| July || ''[[Battle of Heraclea]]'': A [[Magna Graecia|Greek]] coalition force led by the [[Epirus (ancient state)|Epirote]] king [[Pyrrhus of Epirus]] defeated a Roman army after their deployment of war elephants at [[Heraclea Lucania]].
|-
| {{dr|y|y|-279|0|ysa}} || || ''[[Battle of Asculum]]'': A [[Magna Graecia|Greek]] force led by the [[Epirus (ancient state)|Epirote]] king [[Pyrrhus of Epirus|Pyrrhus]] defeated a Roman army at modern [[Ascoli Satriano]], despite suffering heavy losses.
|-
| {{dr|y|y|-275|0|ysa}} || || ''[[Battle of Beneventum (275 BC)]]'': Roman and [[Epirus (ancient state)|Epirote]] armies met in a bloody battle at [[Benevento]].
|-
| rowspan="2" valign="top" | {{dr|y|y|-272|0|ysa}} || || ''Pyrrhic War'': [[Pyrrhus of Epirus|Pyrrhus]] withdrew with his army to [[Epirus]].
|-
| || ''Pyrrhic War'': [[Taranto]] surrendered to Rome.
|-
| {{dr|y|y|-267|0|ysa}} || || The number of [[quaestor]]s was raised from four to ten.
|-
| {{dr|y|y|-264|0|ysa}} || || ''[[Battle of Messana]]'': A Roman force defeated a [[Ancient Carthage|Carthaginian]] and [[Syracuse, Sicily|Siracusani]] garrison at [[Messina]].
|-
| {{dr|y|y|-242|0|ysa}} || || The office of the ''praetor qui inter peregrinos ius dicit'', a ''[[Praetor]]'' with jurisdiction over foreigners, was created.
|-
| {{dr|y|y|-241|0|ysa}} || || ''[[First Punic War]]'': [[Sicily]] was organized as the [[Roman province|province]] of [[Sicilia (Roman province)|Sicilia]].
|-
| {{dr|y|y|-238|0|ysa}} || || ''[[Mercenary War]]'': [[Ancient Carthage|Carthage]] surrendered its claims on [[Sardinia]] and [[Corsica]] to Rome.
|-
| {{dr|y|y|-229|0|ysa}} || || ''[[Illyrian Wars]]'': Rome invaded the territory of the [[Ardiaei]].
|-
| {{dr|y|y|-228|0|ysa}} || || ''Illyrian Wars'': The [[Ardiaei]] surrendered some territory, including strategically significant ports, to Rome, ending the war.
|-
| {{dr|y|y|-225|0|ysa}} || || ''[[Battle of Telamon]]'': A Roman army decisively defeated a [[Gauls|Gallic]] invasion near modern [[Talamone]].  The [[Roman consul|consul]] [[Gaius Atilius Regulus (consul 225 BC)|Gaius Atilius Regulus]] was killed.
|-
| {{dr|y|y|-219|0|ysa}} || || ''Illyrian Wars'': Rome invaded [[Hvar]].
|-
| rowspan="2" valign="top" | {{dr|y|y|-218|0|ysa}} || || ''[[Second Punic War]]'': A [[Ancient Carthage|Carthaginian]] army departed [[Cartagena, Spain|Cartagena]].
|-
| || ''Illyrian Wars'': [[Demetrius of Pharos]] fled to [[Macedonia (ancient kingdom)|Macedonia]].
|-
| {{dr|y|y|-216|0|ysa}} || 2 August || ''[[Battle of Cannae]]'': The [[Ancient Carthage|Carthaginian]] [[general officer|general]] [[Hannibal]] decisively defeated a numerically superior Roman force at [[Cannae]].
|-
| rowspan="2" valign="top" | {{dr|y|y|-214|0|ysa}} || || ''[[First Macedonian War]]'': A [[Macedonia (ancient kingdom)|Macedonian]] fleet captured [[Oricum]].
|-
| || ''[[Siege of Syracuse (214–212 BC)]]'': Rome laid siege to [[Syracuse, Sicily|Syracuse]].
|-
| {{dr|y|y|-212|0|ysa}} || || ''Siege of Syracuse (214–212 BC)'': Roman forces breached the inner citadel of [[Syracuse, Sicily|Syracuse]] and slaughtered its inhabitants.
|-
| {{dr|y|y|-205|0|ysa}} || || ''First Macedonian War'': Rome and [[Macedonia (ancient kingdom)|Macedonia]] signed the [[Treaty of Phoenice]], according to which Macedonia renounced its alliance with [[Ancient Carthage|Carthage]] in exchange for Roman recognition of its gains in [[Illyria]].
|-
| {{dr|y|y|-204|0|ysa}} || || ''Second Punic War'': The [[Roman consul|consul]] [[Scipio Africanus]] landed an invasion fleet at [[Utica, Tunisia|Utica]].
|-
| {{dr|y|y|-202|0|ysa}} || 19 October || ''[[Battle of Zama]]'': A Roman army decisively defeated [[Ancient Carthage|Carthage]], probably near modern [[Sakiet Sidi Youssef]].
|-
| {{dr|y|y|-201|0|ysa}} || || ''Second Punic War'': [[Ancient Carthage|Carthage]] accepted Roman conditions for peace, including disarmament, a war indemnity of ten thousand talents, and the cession of [[Carthaginian Iberia|Iberia]], ending the war.
|}