State · 550 – 330 BCE
Achaemenid Empire
A state of 550 – 330 BCE — 220 years in the Middle East and North Africa. It followed Elam, Lydia and Neo-Babylonian Empire and 7 more. It was followed by Macedonia and Twenty-eighth Dynasty of Egypt. The atlas records 55 things within it — wars and battles 11 · unrest and atrocity 1 · treaties 1 · people 42. Its line of rulers holds 16 people, 11 with dated terms. Its own article says it was conquered.
- Held with the record of Achaemenid dynasty, merged into this one.
For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the state.
- Stood
- 220 years
- 550 BCE – 330 BCE
- Rulers
- 16
- the King of Kings
- Most ground
- 5.62 million km²
- in 480 BCE
- Within it
- 55
- recorded rows
- Symbol
- 1
- on record, with years
550 BCE · first mapped · 3.33 million km²
480 BCE · at its largest · 5.62 million km²
331 BCE · last mapped · 3.51 million km²
Where it sits in time
Five thousand years, 3000 BCE to 2026; the state in gold, what it replaced or followed and what replaced or followed it in grey.
Before and after
The states the record files it as replacing or following, and those that replaced or followed it - Wikidata's own statements, each read from this state's side.
Before it
- Elam · follows · 2700 – 539 BCE
- Median kingdom · follows · 678 – 550 BCE
- Neo-Elamite period · follows
- Massagetae · follows
- Sogdia · follows
- Gandhara (Mahabharata) · follows · 1501 – 535 BCE
- Lydia · follows · 1200 – 546 BCE
- Neo-Babylonian Empire · follows · 626 – 539 BCE
- Achaemenid Kingdom · follows
- Twenty-sixth Dynasty of Egypt · follows · 664 – 525 BCE
After it
- Twenty-eighth Dynasty of Egypt · followed by · 404 – 399 BCE
- Macedonia · followed by · 808 – 167 BCE
How it ended, as its article says
Conquered, -0330. Read from the article's section “lead” by its grammar; the claim is only that the article says so.
In 330 BC, amidst a Greek military campaign that began in 336 BC, the Achaemenid Empire was conquered in its entirety by Alexander the Great, who annexed it to his Macedonian Empire.
One sentence of the English Wikipedia article, CC BY-SA 4.0.
Rulers
The line of King of Kings - the office this state names as its head of state.
| Ruler | Reign | Length | How it ended · source | To the ruler before |
|---|---|---|---|---|
| Cyrus the Great | 559 BCE – 530 BCE | 29 years | died in battleWikidata's manner of death | |
| Cambyses II | 530 BCE – 522 BCE | 8 years | died in office of natural causesWikidata's manner of death | child |
| Bardiya | 522 BCE – 522 BCE | under a year | killedWikidata's manner of death | sibling |
| Darius the Great | 522 BCE – 486 BCE | 36 years | died in office, manner not recordedread off the dates alone | in-law |
| Atossa | 522 BCE – 475 BCE | 47 years | died in office, manner not recordedread off the dates alone | spouse |
| Xerxes I | 486 BCE – 465 BCE | 21 years | deposed or removedWikidata's end cause on the term | child |
| Xerxes II | 424 BCE – 424 BCE | under a year | killed, the article saysread from the ruler's own article | grandchild |
| Sogdianus | 424 BCE – 423 BCE | 1 year | executedWikidata's manner of death | sibling |
| Darius II | 423 BCE – — | no end recorded | ending not on record | sibling |
| Arses | 338 BCE – 336 BCE | 2 years | killedWikidata's manner of death | |
| Darius III | 336 BCE – 330 BCE | 6 years | died in office, manner not recordedread off the dates alone |
16 rulers, 11 with terms dated as terms, covering 559 BCE – 330 BCE. Median reign 7 years. 8 of 10 handovers irregular - a killing, a deposition, a rival claimant, a rising or a coup beside it. A blank in the last column means no kin on record, which is coverage, never “unrelated”.
Ground held, by year
km² inside its borders as the borders dataset draws them, measured on an equal-area grid; a step series, held between the years the dataset maps.
3.33 million km² in 550 BCE, 3.51 million km² in 330 BCE; at its largest 5.62 million km² in 480 BCE. Cliopatria, CC BY 4.0.
Flag or arms
Each symbol with the years its own statement gives; the timeline flies the one of the year on screen.

flag, undatedStandard of Cyrus the Great · Public domain
What happened within it, by century
Every row the atlas hosts under this state, by the century it began in: wars and battles in red, risings, regime changes and massacres beside them, everything else in grey. A tall bar is a century the record is full for, which is partly a fact about Wikipedia.
600 BCE – 501 BCE17 rows · 2 wars and battles
- Heraclitus · scientist · 535 – 471 BCE
- Darius the Great · ruler · 550 – 486 BCE
- Xerxes I · ruler · 519 – 465 BCE
- Themistocles · politician · 524 – 459 BCE
- Leucippus · scientist · 501 BCE
- Artaxerxes I · ruler · 501 – 424 BCE
- Cambyses II · ruler · 559 – 522 BCE
- Xerxes II · ruler · 501 – 423 BCE
and 9 more in the atlas.
500 BCE – 401 BCE19 rows · 5 wars and battles
- Herodotus · writer · 484 – 425 BCE
- Hippocrates · scientist · 460 – 370 BCE
- Democritus · scientist · 461 – 361 BCE
- Anaxagoras · scientist · 500 – 428 BCE
- Aristippus · philosopher · 435 – 366 BCE
- Artaxerxes III · ruler · 425 – 338 BCE
- Artaxerxes II · ruler · 452 – 358 BCE
- Darius II · ruler · 475 – 404 BCE
and 11 more in the atlas.
400 BCE – 301 BCE11 rows · 4 wars and battles · 1 risings, regime changes and massacres
- Darius III · ruler · 380 – 330 BCE
- Battle of Gaugamela · battle · 331 BCE
- Roxana · person · 345 – 310 BCE
- Battle of the Granicus · battle · 334 BCE
- Megasthenes · explorer · 351 – 291 BCE
- Stateira · politician · 346 – 323 BCE
- Peace of Antalcidas · treaty · 387 BCE
- Battle of the Persian Gate · battle · 330 BCE
and 3 more in the atlas.
Among all states
Each measure against the states that carry it, never against all of them: a bar is the share of those states below this one.
- How long it stood220 years
stood longer than 65% of 3,187 states with a recorded end or still standing.
- The most ground it held5,624,700 km²
held more ground at its peak than 98% of 1,465 states with a border in Cliopatria.
- Wars recorded per century0.5
had more wars on record per century than 91% of 3,187 states, counting the wars the atlas hosts under each.
- How long a reign lasted, at the median8 years
had longer reigns, at the median, than 29% of 967 states whose dated line can carry a median.
- Rulers on record16
has more rulers on record than 89% of 1,968 states with a line of rulers.
What led to it, and what came of it
The investigation's own picture: 9 causes the record names and 2 results, the strongest six of each at their own years, joined to the state by the kind of claim - a recorded statement solid, the article's sentence dashed, a theory dash-dot.
Open the investigation: every row with its evidence, the conditions at the time, the theories condition by condition, and the succession analysed.
Open in the atlas
- On the timeline, 572 BCE – 308 BCE, with everything that stood beside it.
- On the map in 480 BCE, live: scrub the year and watch its borders move.
- Investigate it: what led to it, what came of it, and its succession analysed.
Wikidata Q389688 (CC0) · borders Cliopatria, CC BY 4.0 · coast and rivers Natural Earth · symbols from Wikimedia Commons, each credited above · one sentence of the English Wikipedia article, CC BY-SA 4.0 · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.