Territorial change of Empire of Japan

“Empire of Japan” — appears in this map’s data from AD 1868 to 1945. Its territory was largest in AD 1943, at ≈ 7.04 million km².

Territory by period

Period	Area
AD 1868 – 1869	≈ 57 thousand km²
AD 1870 – 1876	≈ 462 thousand km²
AD 1877 – 1879	≈ 428 thousand km²
AD 1880 – 1894	≈ 427 thousand km²
AD 1895 – 1897	≈ 472 thousand km²
AD 1898 – 1899	≈ 469 thousand km²
AD 1900 – 1904	≈ 469 thousand km²
AD 1905 – 1910	≈ 514 thousand km²
AD 1911 – 1914	≈ 746 thousand km²
AD 1915 – 1916	≈ 748 thousand km²
AD 1917 – 1919	≈ 749 thousand km²
AD 1920 – 1921	≈ 929 thousand km²
AD 1922 – 1923	≈ 929 thousand km²
AD 1924 – 1925	≈ 795 thousand km²
AD 1926 – 1926	≈ 749 thousand km²
AD 1927 – 1927	≈ 749 thousand km²
AD 1928 – 1928	≈ 749 thousand km²
AD 1929 – 1931	≈ 748 thousand km²
AD 1932 – 1935	≈ 2.06 million km²
AD 1936 – 1937	≈ 2.08 million km²
AD 1938 – 1938	≈ 3.10 million km²
AD 1939 – 1940	≈ 3.38 million km²
AD 1941 – 1941	≈ 3.41 million km²
AD 1942 – 1942	≈ 4.17 million km²
AD 1943 – 1943	≈ 7.04 million km²
AD 1944 – 1944	≈ 6.97 million km²
AD 1945 – 1945	≈ 6.42 million km²

Outline at its largest extent

Outline of the territory in AD 1943 – 1943 (map drawing). Neighbouring countries are not drawn.

Area and rank by frame

For each frame in which borders change: this country’s territory and its rank by area among the countries that have territory in that frame.

Frame	Area	Rank
AD 1868	≈ 57 thousand km²	74 of 134
AD 1870	≈ 462 thousand km²	29 of 132
AD 1871	≈ 462 thousand km²	30 of 113
AD 1873	≈ 462 thousand km²	28 of 108
AD 1877	≈ 428 thousand km²	29 of 104
AD 1880	≈ 427 thousand km²	30 of 104
AD 1884	≈ 427 thousand km²	30 of 105
AD 1885	≈ 427 thousand km²	31 of 101
AD 1890	≈ 427 thousand km²	34 of 99
AD 1895	≈ 472 thousand km²	37 of 90
AD 1898	≈ 469 thousand km²	37 of 87
AD 1900	≈ 469 thousand km²	36 of 84
AD 1905	≈ 514 thousand km²	35 of 83
AD 1908	≈ 514 thousand km²	35 of 79
AD 1911	≈ 746 thousand km²	29 of 76
AD 1912	≈ 746 thousand km²	31 of 77
AD 1913	≈ 746 thousand km²	30 of 78
AD 1914	≈ 746 thousand km²	30 of 76
AD 1915	≈ 748 thousand km²	30 of 75
AD 1916	≈ 748 thousand km²	31 of 71
AD 1917	≈ 749 thousand km²	31 of 71
AD 1918	≈ 749 thousand km²	31 of 80
AD 1919	≈ 749 thousand km²	29 of 88
AD 1920	≈ 929 thousand km²	24 of 84
AD 1922	≈ 929 thousand km²	26 of 87
AD 1924	≈ 795 thousand km²	29 of 86
AD 1926	≈ 749 thousand km²	31 of 84
AD 1927	≈ 749 thousand km²	31 of 84
AD 1928	≈ 749 thousand km²	31 of 85
AD 1929	≈ 748 thousand km²	31 of 85
AD 1930	≈ 748 thousand km²	31 of 86
AD 1932	≈ 2.06 million km²	15 of 88
AD 1936	≈ 2.08 million km²	15 of 89
AD 1938	≈ 3.10 million km²	11 of 88
AD 1939	≈ 3.38 million km²	10 of 86
AD 1940	≈ 3.38 million km²	11 of 77
AD 1941	≈ 3.41 million km²	10 of 74
AD 1942	≈ 4.17 million km²	10 of 75
AD 1943	≈ 7.04 million km²	8 of 73
AD 1944	≈ 6.97 million km²	8 of 73
AD 1945	≈ 6.42 million km²	8 of 76

Its highest rank was in AD 1943: number 73 of 8.

Neighbouring countries

In order of the number of frames in which they share a border (a parent state, its colonies and other names of the same country are counted as one group).

Kingdom of France — 31 frames
Tsardom of Russia — 30 frames
Kingdom of Italy — 29 frames
Belgium — 21 frames
Republic of China (1912–1949) — 15 frames
Kingdom of England — 11 frames
Mongolian People's Republic — 10 frames
Kuomintang — 9 frames
German Empire — 9 frames
Chinese Communist Party — 8 frames
Qing dynasty — 6 frames
Kingdom of Portugal — 6 frames
Thailand — 4 frames
United States — 3 frames
Australia — 3 frames
Austria-Hungary — 2 frames
Republics of the Soviet Union — 1 frames
Tokugawa shogunate — 1 frames
Dutch Republic — 1 frames
Empire of China (1915–1916) — 1 frames

Territory exchanged with

Computed from changes in territory between frames (only changes of about 20,000 km² or more are counted; these are not actual routes of advance). Top 30 by area.

Frame		Other country	Area
AD 1943	gained	Dutch East Indies	≈ 1.94 million km²
AD 1946	lost	Soviet Union	≈ 1.48 million km²
AD 1932	gained	Republic of China (1912–1949)	≈ 1.31 million km²
AD 1946	lost	Republic of China (1912–1949)	≈ 1.07 million km²
AD 1938	gained	Republic of China (1912–1949)	≈ 1.02 million km²
AD 1943	gained	British Raj	≈ 688 thousand km²
AD 1945	lost	British Raj	≈ 688 thousand km²
AD 1946	lost	United States	≈ 567 thousand km²
AD 1870	gained	Tokugawa shogunate	≈ 402 thousand km²
AD 1942	gained	British Empire	≈ 358 thousand km²
AD 1942	gained	United States	≈ 345 thousand km²
AD 1945	lost	United States	≈ 305 thousand km²
AD 1939	gained	Republic of China (1912–1949)	≈ 280 thousand km²
AD 1911	gained	Korean Empire	≈ 232 thousand km²
AD 1946	lost	British Empire	≈ 230 thousand km²
AD 1944	lost	Australia	≈ 141 thousand km²
AD 1920	gained	Kuomintang	≈ 135 thousand km²
AD 1924	lost	Kuomintang	≈ 135 thousand km²
AD 1945	lost	Australia	≈ 116 thousand km²
AD 1944	gained	Republic of China (1912–1949)	≈ 71 thousand km²
AD 1942	gained	Dutch East Indies	≈ 62 thousand km²
AD 1920	gained	Russian Republic	≈ 46 thousand km²
AD 1926	lost	Soviet Union	≈ 46 thousand km²
AD 1905	gained	Russian Empire	≈ 44 thousand km²
AD 1895	gained	Qing dynasty	≈ 44 thousand km²
AD 1877	lost	Russian Empire	≈ 41 thousand km²
AD 1946	lost	French Indochina	≈ 30 thousand km²
AD 1946	lost	Chinese Communist Party	≈ 30 thousand km²
AD 1941	gained	French Indochina	≈ 30 thousand km²
AD 1936	gained	Republic of China (1912–1949)	≈ 27 thousand km²

Preceded and succeeded by

Preceded by: Tokugawa shogunate

Succeeded by: Japan

Source: Wikidata (CC0)

Wikipedia summary

The Empire of Japan (Japanese: 大日本帝國/大日本帝国, Hepburn: Dai Nippon Teikoku/Dai Nihon Teikoku), also known as the Japanese Empire or Imperial Japan, was the period of Japanese history spanning 79 years, starting with the Meiji Restoration on 3 January 1868, and ending with ratification of the Constitution of Japan on 3 May 1947.

Wikipedia (English) “Empire of Japan”, introduction (first sentences) · text under CC BY-SA 4.0 · read more on Wikipedia

Show on the map — open the AD 1943 frame