| | Encyclopedia: April 23 (Site not responding. Last check: 2007-10-22) |
 | | 215 BC - A temple is built on the Capitoline Hill dedicated to Venus Erycina to commemorate the Roman defeat at Lake Trasimene. |
 | | The Roman Empire is the term conventionally used to describe the Ancient Roman polity in the centuries following its reorganization under the leadership of cesarus vaginius (better known as Caesar Augustus). |
 | | The Battle of Lake Trasimene (June 24, 217 BC, April on the Julian calendar) was a Roman defeat in the Second Punic War between the Carthaginians under Hannibal and the Romans under the consul Gaius Flaminius. |
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