State · 1802 – 1945
Nguyễn dynasty
A state of 1802 – 1945 — 143 years in East and Southeast Asia. It followed Tây Sơn dynasty. It was followed by Vietnam, South Vietnam and North Vietnam. The atlas records 23 things within it — wars and battles 3 · treaties 1 · people 19. Its line of rulers holds 3 people.
- Wikidata's English label: Nguyen dynasty.
For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the state.
- Stood
- 143 years
- 1802 – 1945
- Rulers
- 3
- the emperor
- Most ground
- 301,600 km²
- in 1834
- Within it
- 23
- recorded rows
- Symbol
- 1
- on record, with years
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
- Tây Sơn dynasty · follows · 1778 – 1802
After it
- North Vietnam · followed by · 1945 – 1976
- South Vietnam · followed by · 1955 – 1975
- Vietnam · followed by · 1976 – present
Rulers
The line of emperor.
| Ruler | Reign | Length | How it ended · source | To the ruler before |
|---|---|---|---|---|
| Gia Long | 1802 – 1820 | 18 years | ending not on record | |
| Duy Tân | 1907 – 1916 | 9 years | deposed, the article saysread from the ruler's own article | |
| Bảo Đại | 1926 – 1945 | 19 years | abdicated, the article saysread from the ruler's own article |
3 rulers, 3 with terms dated as terms, covering 1802 – 1945. Median reign 18 years. 1 of 2 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.
34,000 km² in 1802, 235,200 km² in 1882; at its largest 301,600 km² in 1842. 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.

coat of arms, undatedHeirloom seal of the Nguyễn Dynasty · 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.
1800 – 189921 rows · 3 wars and battles
- Tự Đức · ruler · 1829 – 1883
- Thiệu Trị · ruler · 1807 – 1847
- Hàm Nghi · ruler · 1871 – 1944
- Norodom of Cambodia · person · 1834 – 1904
- Hiệp Hòa · ruler · 1847 – 1883
- Thành Thái · ruler · 1879 – 1954
- Đồng Khánh · ruler · 1864 – 1889
- Kiến Phúc · ruler · 1869 – 1884
and 13 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 stood143 years
stood longer than 54% of 3,187 states with a recorded end or still standing.
- The most ground it held301,600 km²
held more ground at its peak than 66% of 1,465 states with a border in Cliopatria.
- Wars recorded per centurynone
had more wars on record per century than 44% of 3,187 states, counting the wars the atlas hosts under each.
- How long a reign lasted, at the median18 years
had longer reigns, at the median, than 56% of 967 states whose dated line can carry a median.
- Rulers on record3
has more rulers on record than 48% of 1,968 states with a line of rulers.
What led to it, and what came of it
The investigation's own picture: 3 causes the record names and 3 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.
Theories that apply to its ending
Of 3 theories of why states fall, 1 has every condition present at this ending; each is applied by its own logic, condition by condition, and whether its authors named this case is a footnote.
Dynastic cycle and the decay of group feeling
Ibn Khaldun 1377 · Turchin & Nefedov 2009
Applies by its own logic: the condition it names held here, and this is the kind of outcome it predicts — adverse regime change or the state's ending.
- the state 90 to 160 years old — ageBand 143
Open in the atlas
- On the timeline, 1788 – 1959, with everything that stood beside it.
- On the map in 1834, live: scrub the year and watch its borders move.
- Investigate it: what led to it, what came of it, and its succession analysed.
Wikidata Q6500483 (CC0) · borders Cliopatria, CC BY 4.0 · coast and rivers Natural Earth · symbols from Wikimedia Commons, each credited above · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.