399: Bliain
| Blianta: 396 397 398 - 399 () - 400 401 402 | |
| Deicheanna blianta: 360í 370í 380í - 390í - 400í 410í 420í | |
| Céadta blianta: 3ú céad - 4ú céad - 5ú céad | |
Eachtraí
Breitheanna
Básanna
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