Concurrency, not sequence

Timeline

Overlap is the point: 277 of these 277 ran concurrently with at least one other, which is the thing a list of dynasties by region cannot show you. Rows are sorted by cited start date, so a neighbour on this axis is a contemporary — and standing at a year says who else was there. A soft bar end means the sources disagree about when it started or stopped.

How many at once

peak 74 in the 1200s

3000 BC2000 BC1000 BCAD 110001900
One column per century, counting every polity whose widest cited span touches it. Nothing here is sourced separately: every date in it is already on a record, the same way the contemporaries list on a polity page is derived rather than researched. The long thin left-hand half is not a gap in history — it is what this collection has read so far.

Spans

Searches names and regions

Drag to see who was standing

cited span contested end cited peak extentphases written
Egypt, Early Dynastic Period3000–2686 BC
Egypt, Old Kingdom2686–2181 BC
Akkadian Empire2334–2154 BC
Gojoseon (Old Joseon)2332–106 BC
Third Dynasty of Ur2112–2004 BC
Egypt, Middle Kingdom2055–1650 BC
First Dynasty of Babylon1894–1595 BC
Hittite Empire1650–1180 BC
The Hyksos1650–1550 BC
Egypt, New Kingdom1550–1077 BC
Mitanni1550–1260 BC
Middle Elamite Kingdom1400–1110 BC
Middle Assyrian Kingdom1363–1056 BC
Egypt, Third Intermediate Period1077–728 BC
Neo-Assyrian Empire911–609 BC
Urartu860–590 BC
Kingdom of Kush850 BC – AD 350
Saba'800 BC – AD 275
Neo-Elamite Kingdom770–645 BC
Median Empire678–549 BC
Egypt, Saite Period664–525 BC
Neo-Babylonian Empire626–539 BC
Achaemenid Empire550–330 BC
Egypt, the Native Restoration404–343 BC
Nanda Empire361–322 BC
Macedonian Empire336–323 BC
Media Atropatene323 BC – AD 226
Ptolemaic Kingdom323–30 BC
Maurya Empire322–185 BC
Seleucid Empire312–63 BC
Kingdom of Iberia302 BC – AD 588
Attalid Kingdom282–133 BC
Kingdom of Pontus281–63 BC
Kingdom of Persis280 BC – AD 224
Antigonid Macedon277–168 BC
Greco-Bactrian Kingdom256–125 BC
Parthian Empire247 BC – AD 224
Qin Empire221–206 BC
Xiongnu Confederation209 BC – AD 91
Han Empire202 BC – AD 220
Caucasian Albania200 BC – AD 822
Indo-Greek Kingdoms200 BC – AD 10
Kingdom of Greater Armenia190 BC – AD 428
Shunga Empire185–72 BC
Nabataean Kingdom168 BC – AD 106
Adiabene160 BC – AD 226
Elymais147 BC – AD 224
Characene141 BC – AD 222
Hasmonean Kingdom140–37 BC
Himyar110 BC – AD 570
Kanva Empire72–27 BC
Silla57 BC – AD 935
Buyeo (Puyŏ)50 BC – AD 17
Goguryeo37 BC – AD 668
Herodian Kingdom37 BC – AD 92
Roman Empire27 BC – AD 395
Baekje18 BC – AD 660
Kushan Empire30–375
Gaya Confederacy41–527
Kingdom of Aksum100–940
Champa192–1471
Cao Wei220–265
Sasanian Empire224–651
Palmyrene Empire260–273
Jin Empire265–420
Nasrids of al-Hira300–602
Gupta Empire320–550
Northern Wei386–535
Byzantine Empire395–1453
Visigothic Kingdom418–711
Hujrid Dynasty425–550
Vandal Kingdom439–534
Hephthalite Confederation440–561
Ostrogothic Kingdom493–553
Jafnid Dynasty502–636
Yamato (Imperial Japan)540–1192
First Turkic Khaganate552–603
Northern Zhou557–581
Lombard Kingdom568–774
Kingdom of Alodia580–1504
Sui Empire581–618
Harsha Empire606–648
Tang Empire618–907
Tibetan Empire618–842
The Community at Medina622–632
Rashidun Caliphate632–661
Khazar Khaganate650–969
Bavand Dynasty651–1349
Kingdom of Makuria651–1365
Umayyad Caliphate661–750
The Sunda Kingdom669–1579
Srivijaya671–1275
Zubayrid Caliphate680–692
First Bulgarian Empire681–1018
Republic of Venice697–1797
Ghana700–1240
Kanem-Bornu700–1893
Balhae713–926
Medang732–1016
Uyghur Khaganate744–840
Abbasid Caliphate750–1258
Ibadi Imamate of Oman750–893
Umayyad Caliphate of Cordoba756–1031
Midrarid Emirate of Sijilmasa757–976
Rustamid Imamate776–909
Idrisid Dynasty788–974
Shirvanshahs799–1538
Aghlabid Emirate800–909
Carolingian Empire800–888
The Khmer Empire802–1431
Samanid Empire819–1005
Ziyadid Dynasty819–1018
Tahirid Dynasty821–873
Karakhanid Khanate840–1212
Saffarid Dynasty861–1003
Tulunid Emirate868–905
Emirate of Derbend869–1077
Kievan Rus'878–1240
Ghurid Sultanate879–1215
Bagratid Armenia884–1045
Hamdanid Dynasty890–1004
Western Xia890–1227
The Kingdom of Hungary895–1526
Later Baekje897–936
Zaydi Imamate of Yemen897–1962
Qarmatian State of Bahrayn899–1077
Taebong905–918
The Five Dynasties907–960
Fatimid Caliphate909–1171
Liao Empire916–1125
Goryeo918–1392
Ziyarid Dynasty931–1090
Buyid Confederation934–1062
Ikhshidid Emirate935–969
Shaddadid Emirate951–1199
Kilwa Sultanate957–1505
Song Empire960–1279
Ghaznavid Empire962–1186
Holy Roman Empire962–1806
The Kingdom of Poland964–1569
Sharifate of Mecca967–1925
Zirid Dynasty972–1148
Marwanid Emirate983–1085
Uqaylid Emirate990–1096
Ma'munid Khwarazmshahs995–1017
Kingdom of Georgia1008–1490
Kakuyid Dynasty1008–1141
Najahid Dynasty1022–1158
Taifa of Seville1023–1091
Mirdasid Emirate1024–1080
Great Seljuk Empire1037–1194
Almoravid Empire1040–1147
The Kingdom of Kediri1042–1222
The Kingdom of Pagan1044–1287
Sulayhid Dynasty1047–1138
Dai Viet under the Ly and the Tran1054–1400
Ammarid Emirate of Tripoli1070–1109
Danishmendid Dynasty1071–1178
Khwarazmian Empire1077–1231
Sultanate of Rum1077–1308
Armenian Kingdom of Cilicia1080–1375
Zurayid Dynasty1080–1173
Nizari Isma'ili State1090–1273
Principality of Antioch1098–1268
County of Edessa1098–1150
Republic of Genoa1099–1797
Kingdom of Jerusalem1099–1291
Great Zimbabwe1100–1450
Artuqid Dynasty1102–1409
County of Tripoli1102–1289
Burid Emirate of Damascus1104–1154
Jin Empire1115–1234
Almohad Caliphate1121–1269
Qara Khitai1124–1218
Zangid Dynasty1127–1250
Kingdom of Sicily1130–1194
The Republic of Novgorod1136–1471
Ethiopian Empire1137–1974
Serbia1166–1459
Ayyubid Sultanate1171–1260
Second Bulgarian Empire1185–1396
The Kamakura Shogunate1192–1333
Latin Empire of Constantinople1204–1261
The Grand Duchy of Lithuania1204–1569
Empire of Nicaea1204–1261
Empire of Trebizond1204–1461
Delhi Sultanate1206–1526
Mongol Empire1206–1368
Singhasari1222–1292
Chagatai Khanate1226–1347
Hafsid Sultanate1229–1574
Rasulid Sultanate1229–1454
Emirate of Granada1232–1492
Mali Empire1235–1670
Zayyanid Kingdom of Tlemcen1235–1556
Golden Horde1242–1502
Marinid Sultanate1244–1465
Karamanid Beylik1250–1487
Mamluk Sultanate1250–1517
Ilkhanate1256–1335
Abbasid Caliphate of Cairo1261–1517
The Grand Principality of Moscow1263–1547
Samudera Pasai1267–1524
Yuan Empire1271–1368
Kediri under Jayakatwang1292–1293
Majapahit1293–1527
Ottoman Empire1299–1922
Aydinid Beylik1308–1426
Muzaffarid Dynasty1314–1393
The Kenmu Restoration1333–1336
Jalayirid Sultanate1335–1432
The Ashikaga Shogunate1336–1573
Nanboku-chō (the Southern Court)1336–1392
Sarbadars1337–1381
Sultanate of Bengal1338–1538
Sultanate of Kashmir1339–1586
The Kingdom of Gelgel1343–1686
Moghulistan1347–1533
The Kingdom of Ayutthaya1351–1767
The Sultanate of Brunei1368–1888
Ming Empire1368–1644
Northern Yuan1368–1635
Timurid Empire1370–1507
Kara Koyunlu1374–1468
Ak Koyunlu1378–1508
Sultanate of Khandesh1382–1601
Joseon1392–1904
Sultanate of Malwa1392–1561
Sharqi Sultanate of Jaunpur1394–1489
Sultanate of Gujarat1396–1572
Sultanate of Melaka1400–1511
Wattasid Dynasty1420–1554
Khanate of Kazan1438–1552
Crimean Khanate1441–1783
The Sultanate of Sulu1450–1915
Tahirid Sultanate of Yemen1454–1517
Songhai Empire1464–1591
Kazakh Khanate1465–1723
Khanate of Astrakhan1466–1556
The Sultanate of Demak1475–1554
Nogai Horde1481–1672
Sultanate of Ternate1486–1683
Khanate of Sibir1493–1598
Aceh Darussalam1496–1903
The Sultanate of Patani1500–1786
Shaybanid Khanate1500–1599
Safavid Empire1501–1736
Saadi Sultanate1510–1659
Khanate of Khiva1511–1873
The Sultanate of Gowa1511–1669
The Sultanate of Tidore1521–1805
Mughal Empire1526–1857
The Sultanate of Banten1527–1684
The Sultanate of Johor1528–1699
The Principality of Transylvania1541–1691
The Tsardom and Empire of Russia1547–1917
The Kingdom of Pajang1568–1588
The Polish-Lithuanian Commonwealth1569–1795
The Toyotomi Regime1582–1600
The Sultanate of Mataram1587–1755
Khanate of Bukhara1599–1873
The Tokugawa Shogunate1603–1868
Qing Empire1616–1912
Ya'ariba Imamate1624–1744
Dzungar Khanate1635–1758
Asante Empire1701–1901
Hotak Dynasty1709–1738
Emirate of Diriyah1727–1818
Afsharid Dynasty1736–1796
Al Bu Sa'id Sultanate1744–1861
Khanate of Kokand1750–1876
Zand Dynasty1751–1794
Kingdom of Kartli-Kakheti1762–1801
Qajar Dynasty1789–1925
Emirate of Nejd1824–1891
Caucasian Imamate1828–1859
Emirate of Jabal Shammar1836–1921
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Why some rows have no peak

The phase vocabulary — formation, expansion, peak, contraction, end, afterlife — is optional, and the rows that do not use all of it are the reason. The Ghurids barely had a golden age before Khwarazm ended them, and the Tahirids never expanded: they were granted a province and kept it. Forcing every polity through the same 6 acts would mean writing something untrue about at least two of them, so the tag is left off and the row shows the absence.

The spine sits beside the name rather than on the chart. Chapters carry no dates of their own, and a mark placed at a horizontal position on an axis labelled in years is a date whether or not it was meant as one — the same class of error as inventing a figure, committed in pixels. The spine says which phases are written. It says nothing about when they were.

One mark is on the axis, and it is cited: where a source dates its own extent figure to a year, that year is drawn. Sixty of these records carry one.