| YEAR | DATE | EVENT | HEAD OF STATE |
| 250 | b.C. | Parthian Kingdon - Arsacide dinasty | king Arsace I |
| 248 | b.C. | king Tiridates I | |
| 211 | b.C. | king Arsace II Artebano I | |
| 191 | b.C. | king Priapatius | |
| 176 | b.C. | king Arsace V Fraates I | |
| 171 | b.C. | king Arsace VI Mitridate I | |
| 139 | b.C. | king Arsace VII Fraates II | |
| 128 | b.C. | king Arsace VIII Artebano II | |
| 124 | b.C. | king Arsace IX Mitridate II | |
| 90 | b.C. | king Gotarzes I | |
| 80 | b.C. | king Arsace X Orodes I | |
| 77 | b.C. | king Arsace XI Sinatruces | |
| 70 | b.C. | king Arsace XII Fraates III | |
| 57 | b.C. | king Arsace XIII Mitridate III | |
| 55 | b.C. | king Arsace XIV Orodes II | |
| 38 | b.C. | king Pacorus I | |
| 37 | b.C. | king Arsace XV Fraates IV | |
| 3 | b.C. | king Fraates V | |
| 3 | king Orodes III | ||
| 7 | king Vonones I | ||
| 12 | king Artabanus III | ||
| 39 | king Vardanes I | ||
| 43 | king Gotarzes II | ||
| 50 | king Vologezes I | ||
| 77 | king Vologezes II | ||
| 78 | king Pacorus II (I) | ||
| 79 | king Artabano IV | ||
| 80 | king Pacorus II (II) | ||
| 86 | king Vologezes II | ||
| 90 | king Oroses | ||
| 111 | king Vologezes III | ||
| 130 | king Mithridates IV | ||
| 148 | king Vologezes IV | ||
| 190 | king Vologezes V | ||
| 208 | king Vologezes VI | ||
| 222 | king Artabanus V | ||
| 226 | king Artavasdes | ||
| 227 | Sassainid dinasty | king Ardashir I | |
| 241 | king Sapor I | ||
| 272 | king Hormisdas I | ||
| 273 | king Baranes I | ||
| 276 | king Baranes II | ||
| 292 | king Baranes III | ||
| 293 | king Narses I | ||
| 303 | king Harmisdas II | ||
| 309 | king Sapor II | ||
| 379 | king Ardashir II | ||
| 383 | king Sapor III | ||
| 388 | king Baranes IV | ||
| 399 | king Yazdegerd I | ||
| 420 | king Baranes V | ||
| 440 | king Yazdegerd II | ||
| 457 | king Hormisdas III | ||
| 458 | king Peroz I | ||
| 484 | king Balash I | ||
| 488 | king Kobad I (I) | ||
| 496 | king Zamasp | ||
| 498 | king Kobad I (II) | ||
| 531 | king Cosroe I | ||
| 578 | king Hormisdas IV | ||
| 590 | king Baranes VI | ||
| 591 | king Cosroe II | ||
| 628 | king Kobad II | ||
| 629 | king Boran | ||
| 630 | king Hormisdas V and Cosroe III | ||
| 632 | king Yazdegerd III |