The Classical Era is the second era in Civilization IV and its expansions.
Technologies
- Aesthetics
- Mathematics
- Alphabet
- Monarchy
- Metal Casting
- Iron Working
- Literature
- Calendar
- Construction
- Compass
- Currency
Units
- Horse archer
- Trireme
- Swordsman
- Keshik
- Numidian Cavalry
- Spy
- War Elephant
- Explorer
- Ballista Elephant
- Catapult
- Hwacha