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Prasinos exists in an isolated bubble in the cosmic seafoam of the multiverse but keeps time with its closest neighbors, Oerth and Earth. These two neighbors are the only planar systems known to have interacted with Prasinos.
This is not an exhaustive list of major events but seeks to include known crossover events as well as calendar landmarks for reference.
Bolded dates indicate which systems the listed event involved.
Conversion
Oerth dates (DR) can be converted to Earth dates (AD/BD) by adding 630 to the Oerth date.
Prasinos dates (NE) can be converted to Oerth dates by adding 1257 to the Prasinos date.
The Prasinos New Era calendar includes a year zero, so math can be done directly to calculate past dates: the year before 1 is zero, 10 years before 1NE is 1-10= -9 or 9BCE.
There is no year zero in DR or AD, so past dates need to account for this. The year before 1 is -1 (also noted as 1BD in Earth dates), 10 years before 1DR is -10DR, 10 years before 1AD is -10AD or 10BD.
Because of this difference, convert Prasinos BNE dates to Oerth dates by adding 1258 to the Prasinos date.
| Year | ||
|---|---|---|
| Oerth | Prasinos | Earth |
| −4366 DR | 5624 BNE | 3736 BD |
| Portals are opened to Earth and Prasinos from Oerth by the Imaskar Empire. The Empire kidnaps many Earth humans to replace lost slaves; Prasinian natives repel the invaders. A few humans escape back to Earth, and one to Prasinos. | ||
| -629 DR | -1887 BNE | 1 AD |
| Anno Domini calendar begins. Earlier dates are noted in years before AD as years BD. | ||
| 1 DR | -1257 BNE | 630 AD |
| The Dalereckoning calendar begins, marking the beginning of the Age of Humanity. | ||
| 12 DR | 1246 | 642 AD |
| Foxes are introduced to Oerth by a traveler from Earth. | ||
| 260 DR | 998 BNE | 890 AD |
| The Prasinian Isolation begins. | ||
| 533 DR | 755 BNE | 1133 AD |
| Kugutha, weakened by being disconnected from Prasinos, is slain by Bahamut. Celestial events are observed on Earth and Oerth; King Henry's Eclipse and the Calimport Grandspark respectively. | ||
| 576 DR | 682 BNE | 1206 AD |
| A plot by Avandra and Melora leads to Nerull's death. Nerull is slain by the Oerth mortal who would become the Raven Queen. | ||
| 1257 DR | Year Zero | 1887 AD |
| The Prasinian Isolation ends. A year is lost in flames. This marks the beginning of the New Era calendar. | ||
| 1335 DR | 78 NE | 1965 AD |
| Elminster visits Earth for the first time. | ||
| 1348 DR | 92 NE | 1978 AD |
| Dee Stranger, a human from Earth, arrives on Prasinos. | ||
| 1355 DR | 98 NE | 1985 AD |
| Six Children of Earth arrive on Oerth, having traveled through a desolate minor plane ruled by Tiamat, known only as The Realm. | ||
| 1358 DR | 101 NE | 1988 AD |
| Elminster's journals are found on Earth. | ||
| 136X DR | 10X NE | 199X AD |
| The Children of Earth visit Elminster. | ||
| 1363 DR | 106NE | 1993 AD |
| The Lords of Goon's Folly begin their journey. | ||
| 1371 DR | 114 NE | 2001AD |
| The first celebration of 911's Day marks the beginning of the Age of Cacophony. | ||