| Millennium: | 1st millennium BC |
| Centuries: | 4th century BC – 3rd century BC – 2nd century BC |
| Decades: | 300s BC 290s BC 280s BC – 270s BC – 260s BC 250s BC 240s BC |
| Years: | 279 BC 278 BC 277 BC 276 BC 275 BC 274 BC 273 BC 272 BC 271 BC 270 BC |
| Categories: | Births – Deaths – Architecture Establishments – Disestablishments |