| Japan 日本国 Nippon-koku or Nihon-koku |
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Anthem: Kimigayo
(君が代)
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Government Seal of Japan

五七桐 (Go-Shichi no Kiri?) |
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Capital
(and largest city) | Tokyo (de facto) 35°41′N139°46′E / 35.683°N 139.767°E / 35.683; 139.767 |
| Official language(s) | None[1] |
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| Recognised regional languages | Aynu itak, Ryukyuan languages, Eastern Japanese, Western Japanese, and several other Japanese dialects |
| National language | Japanese |
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| Ethnic groups | 98.5% Japanese, 0.5% Korean, 0.4% Chinese, 0.6% other[2] |
| Demonym | Japanese |
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| Government | Unitaryparliamentary democracy and constitutional monarchy |
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| - | Emperor | Akihito |
| - | Prime Minister | Yoshihiko Noda |
| Legislature | Diet |
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| - | Upper house | House of Councillors |
| - | Lower house | House of Representatives |
| Formation |
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| - | National Foundation Day | 11 February 660 BC[3] |
| - | Meiji Constitution | 29 November 1890 |
| - | Current constitution | 3 May 1947 |
| - | Treaty of
San Francisco |
28 April 1952 |
| Area |
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| - | Total | 377,944 km2 [4](62nd)
145,925 sq mi |
| - | Water (%) | 0.8 |
| Population |
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| - | 2011 estimate | 127,799,000[5] (10th) |
| - | 2010 census | 128,056,026[6] |
| - | Density | 337.1/km2 (36th)
873.1/sq mi |
| GDP (PPP) | 2011 estimate |
| - | Total | $4.440 trillion[7] (4th) |
| - | Per capita | $34,739[7] (25th) |
| GDP (nominal) | 2011 estimate |
| - | Total | $5.869 trillion[7] (3rd) |
| - | Per capita | $45,920[7] (18th) |
| Gini | 37.6 (2008)[8] |
| HDI (2011) | 0.901[9] (very high) (12th) |
| Currency | Yen (¥) / En (円 or 圓) (JPY) |
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| Time zone | JST(UTC+9) |
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| - | Summer (DST) | not observed (UTC+9) |
| Date formats | yyyy-mm-dd
yyyy年m月d日 Era yy年m月d日 (CE−1988) |
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| Drives on the | left |
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| ISO 3166 code | JP |
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| Internet TLD | .jp |
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| Calling code | 81 |
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