State · 1947 – present
Japan
A state of 1947 – present — 79 years, still standing in East and Southeast Asia. It replaced Empire of Japan and Second Shō dynasty. The atlas records 77 things within it — unrest and atrocity 12 · famine and plague 2 · natural disasters 32 · treaties 5 · people 24 · works and ideas 2. Its line of rulers holds 9 people, 3 with dated terms.
- Still standing: the span runs to the year of the build, 2026.
For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the state.
- Stood
- 79 years
- and still standing
- Rulers
- 9
- the Emperor of Japan
- Most ground
- 413,000 km²
- in 1973
- Within it
- 77
- recorded rows
- Symbols
- 3
- 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
- Second Shō dynasty · replaces · 1469
- Empire of Japan · replaces · 1868 – 1947
Rulers
The line of Emperor of Japan - the office this state names as its head of state.
| Ruler | Reign | Length | How it ended · source | To the ruler before |
|---|---|---|---|---|
| Hirohito | 1926 – 1989 | 63 years | died in office of natural causesWikidata's manner of death | |
| Akihito | 1989 – 2019 | 30 years | abdicatedWikidata's end cause on the term | child |
| Naruhito | 2019 – in office | in office since 2019 | still in office | child |
9 rulers, 3 with terms dated as terms, covering 1926 – 2019. Median reign 46.5 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”.
Heads of government
The line of Prime Minister of Japan, drawn and never measured: a cabinet is not a reign.
| Hideki Tojo | 1941 – 1944 |
| Kuniaki Koiso | 1944 – 1945 |
| Prince Naruhiko Higashikuni | 1945 – 1945 |
| Kijūrō Shidehara | 1945 – 1946 |
| Kantarō Suzuki | 1945 – 1945 |
| Shigeru Yoshida | 1946 – 1947 |
| Tetsu Katayama | 1947 – 1948 |
| Hitoshi Ashida | 1948 – 1948 |
| Shigeru Yoshida | 1949 – 1952 |
| Shigeru Yoshida | 1953 – 1954 |
| Ichirō Hatoyama | 1954 – 1955 |
| Tanzan Ishibashi | 1956 – 1957 |
| Nobusuke Kishi | 1958 – 1960 |
| Hayato Ikeda | 1960 – 1960 |
| Hayato Ikeda | 1963 – 1964 |
| Eisaku Satō | 1964 – 1967 |
| Eisaku Satō | 1967 – 1970 |
| Eisaku Satō | 1970 – 1972 |
| Kakuei Tanaka | 1972 – 1972 |
| Takeo Miki | 1974 – 1976 |
| Takeo Fukuda | 1976 – 1978 |
| Masayoshi Ōhira | 1979 – 1980 |
| Zenkō Suzuki | 1980 – 1982 |
| Masayoshi Ito | 1980 – 1980 |
| Yasuhiro Nakasone | 1982 – 1983 |
| Yasuhiro Nakasone | 1986 – 1987 |
| Noboru Takeshita | 1987 – 1989 |
| Toshiki Kaifu | 1989 – 1990 |
| Sōsuke Uno | 1989 – 1989 |
| Kiichi Miyazawa | 1991 – 1993 |
| Morihiro Hosokawa | 1993 – 1994 |
| Tomiichi Murayama | 1994 – 1996 |
| Tsutomu Hata | 1994 – 1994 |
| Ryutaro Hashimoto | 1996 – 1996 |
| Keizō Obuchi | 1998 – 2000 |
| Yoshirō Mori | 2000 – 2001 |
| Junichiro Koizumi | 2001 – 2003 |
| Junichiro Koizumi | 2003 – 2005 |
| Junichiro Koizumi | 2005 – 2006 |
| Shinzo Abe | 2006 – 2007 |
| Yasuo Fukuda | 2007 – 2008 |
| Tarō Asō | 2008 – 2009 |
| Yukio Hatoyama | 2009 – 2010 |
| Naoto Kan | 2010 – 2011 |
| Yoshihiko Noda | 2011 – 2012 |
| Shinzo Abe | 2012 – 2014 |
| Shinzo Abe | 2014 – 2017 |
| Shinzo Abe | 2017 – 2020 |
| Yoshihide Suga | 2020 – 2021 |
| Fumio Kishida | 2021 – 2022 |
| Fumio Kishida | 2023 – 2024 |
| Shigeru Ishiba | 2024 – 2024 |
| Sanae Takaichi | 2025 – … |
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.
410,800 km² in 1957, 413,000 km² in 2017; at its largest 413,000 km² in 1977. Cliopatria, CC BY 4.0.
Flags and arms, in order
Each symbol with the years its own statement gives; the timeline flies the one of the year on screen.
coat of arms, undatedKamon of the Imperial House of Japan · CC BY-SA 4.0 · Fonsecafrancesco04 .svg/120px-Flag_of_Japan_(1870%E2%80%931999).svg.png)
flag, 1870 – 1999Flag of Japan (1870–1999) · Public domain 
flag, from 1999Flag of Japan · 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.
1900 – 199942 rows · 6 risings, regime changes and massacres
- Naruhito · ruler · 1960 – present
- Shinzo Abe · politician · 1954 – 2022
- Akihito · ruler · 1933 – present
- Haruki Murakami · writer · 1949 – present
- Kazuo Ishiguro · writer · 1954 – present
- Yoshihide Suga · politician · 1948 – present
- Fumio Kishida · politician · 1957 – present
- Sanae Takaichi · politician · 1961 – present
and 34 more in the atlas.
2000 – 209935 rows · 6 risings, regime changes and massacres
- 2011 Tōhoku earthquake and tsunami · disaster · 2011
- Assassination of Shinzo Abe · atrocity · 2022
- 2024 Noto earthquake · disaster · 2024
- Kyoto Animation arson attack · atrocity · 2019
- 2016 Kumamoto earthquakes · disaster · 2016
- COVID-19 pandemic in Japan · plague · 2020
- Nagoya Protocol · treaty · 2014
- Sagamihara stabbings · atrocity · 2016
and 27 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 stood79 years
stood longer than 42% of 3,187 states with a recorded end or still standing.
- The most ground it held413,000 km²
held more ground at its peak than 71% 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 median63 years
had longer reigns, at the median, than 97% of 967 states whose dated line can carry a median.
- Rulers on record9
has more rulers on record than 78% of 1,968 states with a line of rulers.
What led to it, and what came of it
The investigation's own picture: 262 causes the record names and 0 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, 1937 – 2036, with everything that stood beside it.
- On the map in 1973, live: scrub the year and watch its borders move.
- Investigate it: what led to it, what came of it, and its succession analysed.
Wikidata Q17 (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.