List of largest empires

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The British Empire (red) and Mongol Empire (blue) were the largest and second-largest empires in history, respectively. The precise extent of either empire at its greatest territorial expansion is a matter of debate among scholars. Combined map - British and Mongol Empires.svg
The British Empire (red) and Mongol Empire (blue) were the largest and second-largest empires in history, respectively. The precise extent of either empire at its greatest territorial expansion is a matter of debate among scholars.

Several empires in human history have been contenders for the largest of all time, depending on definition and mode of measurement. Possible ways of measuring size include area, population, economy, and power. Of these, area is the most commonly used because it has a fairly precise definition and can be feasibly measured with some degree of accuracy. [1] Estonian political scientist Rein Taagepera, who published a series of academic articles about the territorial extents of historical empires between 1978 and 1997, [2] [3] [4] [5] defined an empire as "any relatively large sovereign political entity whose components are not sovereign" and its size as the area over which the empire has some undisputed military and taxation prerogatives. [6] The list is not exhaustive owing to a lack of available data for several empires; for this reason and because of the inherent uncertainty in the estimates, no rankings are given.

Contents

Largest empires by land area

For context, the land area of the Earth, excluding the continent of Antarctica, is 134,740,000 km2 (52,023,000 sq mi). [7]

Empires at their greatest extent

The home and colonial areas of the world's empires in 1908, as given by The Harmsworth Atlas and Gazetteer The Harmsworth atlas and Gazetter 1908 (135853015).jpg
The home and colonial areas of the world's empires in 1908, as given by The Harmsworth Atlas and Gazetteer

Empire size in this list is defined as the dry land area it controlled at the time, which may differ considerably from the area it claimed. For example: in the year 1800, European powers collectively claimed approximately 20% of the Earth's land surface that they did not effectively control. [8] Where estimates vary, entries are sorted by the lowest estimate. Where more than one entry has the same area, they are listed alphabetically.

EmpireMaximum land area
Million km2Million sq mi % of worldYear
British Empire [a] 35.5 [9] 13.711920 [9]
Mongol Empire [b] 24.0 [9] [10] 9.271270 [10] or 1309 [9]
Russian Empire [c] 22.8 [9] [10] 8.801895 [9] [10]
Qing dynasty [d] 14.7 [9] [10] 5.681790 [9] [10]
Spanish Empire 13.7 [9] 5.291810 [9]
Second French colonial empire 11.5 [9] 4.441920 [9]
Abbasid Caliphate 11.1 [9] 4.29750 [9]
Umayyad Caliphate 11.1 [9] 4.29720 [9]
Yuan dynasty 11.0 [9] 4.251310 [9]
Xiongnu Empire 9.0 [10] [11] 3.47176 BC [10] [11]
Empire of Brazil [e] 8.337 [12] 3.221889 [12]
Empire of Japan 7.4 [13] 8.512.86–3.285 [14] 1942 [13] [14]
Eastern Han dynasty 6.5 [11] 2.51100 [11]
Ming dynasty 6.5 [9] [10] 2.511450 [9] [10]
Rashidun Caliphate 6.4 [9] 2.47655 [9]
First Turkic Khaganate 6.0 [10] [11] 2.32557 [10] [11]
Golden Horde Khanate 6.0 [9] [10] 2.321310 [9] [10]
Western Han dynasty 6.0 [10] [11] 2.3250 BC [10] [11]
Achaemenid Empire 5.5 [10] [11] 2.12500 BC [10] [11]
Second Portuguese Empire [e] 5.5 [9] 2.121820 [9]
Tang dynasty 5.4 [9] [10] 2.08715 [9] [10]
Macedonian Empire 5.2 [10] [11] 2.01323 BC [10] [11]
Ottoman Empire 5.2 [9] [10] 2.011683 [9] [10]
Northern Yuan dynasty 5.0 [9] 1.931368 [9]
Roman Empire 5.0 [10] [11] 1.93117 [10] [11]
Xin dynasty 4.7 [11] 1.8110 [11]
Tibetan Empire 4.6 [9] [10] 1.78800 [9] [10]
Xianbei state 4.5 [15] 1.74200 [15]
First Mexican Empire 4.429 [16] 1.711821 [16]
Timurid Empire 4.4 [9] [10] 1.701405 [9] [10]
Fatimid Caliphate 4.1 [9] [10] 1.58969 [9] [10]
Eastern Turkic Khaganate 4.0 [11] 1.54624 [11]
Hunnic Empire 4.0 [10] [11] 1.54441 [10] [11]
Mughal Empire 4.0 [9] [10] 1.541690 [9] [10]
Great Seljuq Empire 3.9 [9] [10] 1.511080 [9] [10]
Seleucid Empire 3.9 [10] [11] 1.51301 BC [10] [11]
Italian Empire 3.825 [17] 1.481941 [17]
Ilkhanate 3.75 [9] [10] 1.451310 [9] [10]
Dzungar Khanate 3.6 [15] 1.391650 [15]
Chagatai Khanate 3.5 [9] [10] 1.351310 [9] or 1350 [9] [10]
Sasanian Empire 3.5 [10] [11] 1.35550 [10] [11]
Western Turkic Khaganate 3.5 [11] 1.35630 [11]
Western Xiongnu 3.5 [11] 1.3520 [11]
First French colonial empire 3.4 [9] 1.311670 [9]
Ghaznavid Empire 3.4 [9] [10] 1.311029 [9] [10]
Maurya Empire 3.4 [11] –5.0 [10] 1.311.93261 BC [11] or 250 BC [10]
Delhi Sultanate 3.2 [9] [10] 1.241312 [9] [10]
German colonial empire 3.1471.215 [18] 1911 [18]
Northern Song dynasty 3.1 [9] [10] 1.20980 [9] [10]
Uyghur Khaganate 3.1 [9] [10] 1.20800 [9] [10]
Western Jin dynasty 3.1 [11] 1.20280 [11]
Danish Empire 3.0 [19] 1.161700 [19]
Sui dynasty 3.0 [11] 1.16589 [11]
Safavid empire 2.9 [15] 1.121630 [15]
Samanid Empire 2.85 [9] [10] 1.10928 [9] [10]
Eastern Jin dynasty 2.8 [11] 1.08347 [11]
Median Empire [f] 2.8 [10] [11] 1.08585 BC [10] [11]
Parthian Empire 2.8 [10] [11] 1.081 [10] [11]
Rouran Khaganate 2.8 [10] [11] 1.08405 [10] [11]
Byzantine Empire 2.7 [10] –2.8 [11] 1.041.08555 [10] or 450 [11]
Indo-Scythian Kingdom 2.6 [11] 1.0020 [11]
Liao dynasty 2.6 [9] [10] 1.00947 [9] [10]
Greco-Bactrian Kingdom 2.5 [11] 0.97184 BC [11]
Later Zhao 2.5 [11] 0.97329 [11]
Maratha Confederacy 2.5 [10] 0.971760 [10]
Belgian colonial empire 2.366 [17] 2.470.910.95 [21] 1941 [17] or 1939 [21]
Jin dynasty (1115–1234) 2.3 [9] [10] 0.891126 [9] [10]
Khwarazmian Empire 2.3 [10] –3.6 [9] 0.891.391210 [10] or 1218 [9]
Qin dynasty 2.3 [11] 0.89220 BC [11]
Dutch Empire 2.1 [15] 0.811938 [15]
First French Empire 2.1 [9] 0.811813 [9]
Kievan Rus' 2.1 [9] [10] 0.811000 [9] [10]
Mamluk Sultanate 2.1 [9] [10] 0.811300 [9] or 1400 [10]
Southern Song dynasty 2.1 [9] 0.811127 [9]
Third Portuguese Empire 2.1 [9] 0.811900 [9]
Almohad Caliphate 2.0 [10] –2.3 [9] 0.770.891200 [10] or 1150 [9]
Cao Wei 2.0 [11] 0.77263 [11]
Former Qin 2.0 [11] 0.77376 [11]
Former Zhao 2.0 [11] 0.77316 [11]
Ghurid dynasty 2.0 [15] 0.771200 [15]
Inca Empire 2.0 [9] [10] 0.771527 [9] [10]
Kushan Empire 2.0 [10] –2.5 [11] 0.770.97200 [10] [11]
Liu Song dynasty 2.0 [11] 0.77450 [11]
Northern Wei 2.0 [11] 0.77450 [11]
Western Roman Empire 2.0 [11] 0.77395 [11]
Ayyubid dynasty 1.7 [9] –2.0 [10] 0.660.771200 [9] or 1190 [10]
Gupta Empire 1.7 [11] –3.5 [10] 0.661.35440 [11] or 400 [10]
Hephthalite Empire 1.7 [22] –4.0 [11] 0.661.54500 [22] or 470 [11]
Buyid dynasty 1.6 [9] [10] 0.62980 [9] [10]
Eastern Wu 1.5 [11] 0.58221 [11]
Northern Qi 1.5 [11] 0.58557 [11]
Northern Xiongnu 1.5 [11] 0.5860 [11]
Northern Zhou 1.5 [11] 0.58577 [11]
Neo-Assyrian Empire 1.4 [10] [23] 0.54670 BC [10] [23]
Eastern Maurya Kingdom 1.3 [11] 0.50210 BC [11]
Liang dynasty 1.3 [10] [11] 0.50502, [11] 549, [11] or 579 [10]
Qajar Empire 1.290.50 [24] 1873 [24]
Kingdom of Aksum 1.25 [10] 0.48350 [10]
Shang dynasty 1.25 [10] [23] 0.481122 BC [10] [23]
Francia 1.2 [9] [10] 0.46814 [9] [10]
Srivijaya 1.2 [10] 0.461200 [10]
Indo-Greek Kingdom 1.1 [11] 0.42150 BC [11]
Mali Empire 1.1 [9] [10] 0.421380 [9] [10]
Polish–Lithuanian Commonwealth 1.1 [9] [10] 0.421480 [10] or 1650 [9]
Almoravid dynasty 1.0 [10] 0.391120 [10]
Pushyabhuti dynasty 1.0 [9] [10] 0.39625 [9] or 648 [9] [10]
Gurjara-Pratihara dynasty 1.0 [9] 0.39860 [9]
Holy Roman Empire 1.0 [9] 0.391050 [9]
Khazar Khanate 1.0 [9] –3.0 [10] 0.391.16900 [9] or 850 [10]
Khmer Empire 1.0 [9] [10] 0.391290 [9] [10]
New Kingdom of Egypt 1.0 [10] [23] 0.391450 BC [23] or 1300 BC [10]
Ptolemaic Kingdom 1.0 [11] 0.39301 BC [11]
Qara Khitai 1.0 [9] –1.5 [10] 0.390.581130 [9] or 1210 [10]
Scythia 1.0 [22] 0.39400 BC [22]
Shu Han 1.0 [11] 0.39221 [11]
Tahirid dynasty 1.0 [9] 0.39800 [9]
Western Xia 1.0 [10] 0.391100 [10]
Swedish Empire 0.99 [25] 0.381700 [25]
Kingdom of Armenia 0.9 [26] 0.3570 BC [26]
Nazi Germany 0.824 [17] 0.321941 [17]
Akkadian Empire 0.8 [23] 0.312250 BC [23]
Avar Khaganate 0.8 [11] 0.31600 [11]
Chu 0.8 [11] 0.31300 BC [11]
Huns0.8 [11] 0.31287 [11]
Songhai Empire 0.8 [9] 0.311550 [9]
Hyksos 0.65 [23] 0.251650 BC [23]
Twenty-sixth Dynasty of Egypt 0.65 [23] 0.25550 BC [23]
Rozvi Empire 0.624 [27] 0.241700 [27]
Austro-Hungarian Empire 0.620.24 [28] 1905 [28]
Caliphate of Córdoba 0.6 [9] 0.231000 [9]
First Portuguese Empire 0.6 [9] 0.231580 [9]
Visigothic Kingdom 0.6 [11] 0.23580 [11]
Zhou dynasty 0.55 [29] 0.211100 BC [29]
Sikh Empire 0.520.20 [30] 1839 [30]
Emirate of Córdoba 0.5 [9] 0.19756 [9]
Kosala 0.5 [11] 0.19543 BC [11]
Lydia 0.5 [23] 0.19585 BC [23]
Magadha 0.5 [11] 0.19510 BC [11]
Middle Kingdom of Egypt 0.5 [23] 0.191850 BC [23]
Neo-Babylonian Empire 0.5 [23] 0.19562 BC [23]
Satavahana dynasty 0.5 [11] 0.19150 [11]
Twenty-fifth Dynasty of Egypt 0.5 [23] 0.19715 BC [23]
Western Satraps 0.5 [11] 0.19100 [11]
New Hittite Kingdom 0.45 [23] 0.171250 BC 1220 BC [23]
Xia dynasty 0.45 [23] 0.171800 BC [23]
Bulgarian Empire 0.4 [31] [ need quotation to verify ]0.15850 [31] [ need quotation to verify ]
Kingdom of France (Middle Ages) 0.4 [9] 0.151250 [9]
Middle Assyrian Empire 0.4 [23] 0.151080 BC [23]
Old Kingdom of Egypt 0.4 [23] 0.152400 BC [23]
Sokoto Caliphate 0.4 [32] 0.151804 [32]
Latin Empire 0.35 [11] 0.141204 [11]
Ancient Carthage 0.3 [11] 0.12220 BC [11]
Indus Valley civilisation [g] 0.3 [29] 0.121800 BC [29]
Mitanni 0.3 [23] 0.121450 BC 1375 BC [23]
Ashanti Empire 0.25 [33] 0.101820 [33]
First Babylonian Empire 0.25 [23] 0.101690 BC [23]
Aztec Empire 0.22 [9] 0.081520 [9]
Zulu Empire 0.210.08 [34] 1822 [34]
Elamite Empire 0.2 [23] 0.081160 BC [23]
Phrygia 0.2 [23] 0.08750 BC [23]
Second Dynasty of Isin 0.2 [23] 0.081130 BC [23]
Urartu 0.2 [23] 0.08800 BC [23]
Eastern Zhou 0.15 [23] 0.06770 BC [23]
Middle Hittite Kingdom 0.15 [23] 0.061450 BC [23]
Old Assyrian Empire 0.15 [23] 0.061730 BC [23]
Old Hittite Empire 0.15 [23] 0.061530 BC [23]
Oyo Empire 0.15 [35] 0.061680 [35]
Bornu Empire 0.130.05 [36] 1892 [36]
Larsa 0.1 [23] 0.041750 BC 1700 BC [23]
Neo-Sumerian Empire 0.1 [23] 0.042000 BC [23]
Tarascan empire 0.075 [37] 0.031450 [37]
Lagash 0.05 [29] 0.022400 BC [29]
Sumer 0.05 [23] 0.022400 BC [23]
  1. The largest peak areas of its former colonies following independence were Canada's 9.98 million km2 (3.85 million sq mi) in 1945, the United States' 9.67 million km2 (3.73 million sq mi) in 1899, and Australia's 7.68 million km2 (2.97 million sq mi) in 1945. [9]
  2. The Mongol Empire eventually fractured into four separate khanates: the Yuan dynasty, Chagatai Khanate, Ilkhanate, and Golden Horde. These are listed separately.
  3. Its successor state the USSR and its successor in turn, the Russian Federation, reached maximum extents of 22.3 million km2 (8.6 million sq mi) in 1945 and 17.1 million km2 (6.6 million sq mi) in 1991, respectively. [9]
  4. Its successor state the Republic of China (1912–1949) and its successor in turn, the People's Republic of China (since 1949), reached maximum extents of 7.7 million km2 (3.0 million sq mi) in 1912 and 9.7 million km2 (3.7 million sq mi) in 1950, respectively. [9]
  5. 1 2 The reason the Empire of Brazil is listed as having a larger area in 1889 than the Portuguese Empire had in 1820, despite Brazil having been a Portuguese colony, is that the Portuguese settlers only had effective control over approximately half of Brazil at the time of Brazilian independence in 1822. [9]
  6. More recent reassessment of the historical evidence, both archaeological and textual, has led modern scholars to question previous notions of the extent of the realm of the Medes and even its existence as a unified state. [20]
  7. The extent to which this constituted a cohesive political entity is uncertain. [29]

Timeline of largest empires to date

The earliest empire which can with certainty be stated to have been larger than all previous empires was that of Upper and Lower Egypt, which covered ten times the area of the previous largest civilisation around the year 3000 BC. [38]

EmpireLand areaYear
Million km2Million sq mi
Upper and Lower Egypt 0.1 [23] 0.043000 BC [23]
Old Kingdom of Egypt 0.25 [23] 0.102850 BC [23]
0.4 [23] 0.152400 BC [23]
Akkadian Empire 0.65 [23] 0.252300 BC [23]
0.8 [23] 0.312250 BC [23]
New Kingdom of Egypt 1.0 [23] 0.391450 BC [23]
Shang dynasty 1.25 [23] 0.481122 BC [23]
Neo-Assyrian Empire 1.4 [23] 0.54670 BC [23]
Median Empire [a] 2.8 [11] 1.08585 BC [11]
Achaemenid Empire 3.6 [11] 1.39539 BC [11]
5.5 [11] 2.12500 BC [11]
Xiongnu Empire 9.0 [11] 3.47176 BC [11]
Umayyad Caliphate 11.1 [9] 4.29720 [9]
Mongol Empire 13.5 [9] 5.211227 [9]
24.0 [9] 9.271309 [9]
British Empire 24.5 [9] 9.461880 [9]
35.5 [9] 13.711920 [9]
  1. More recent reassessment of the historical evidence, both archaeological and textual, has led modern scholars to question previous notions of the extent of the realm of the Medes and even its existence as a unified state. [20] If the Median Empire never surpassed the size of the Neo-Assyrian Empire, the latter remained the largest empire the world had seen until the Achaemenid Empire surpassed it. [23] [11]

Timeline of largest empires at the time

EmpireLand area during time
as largest empire
Approximate period [29]
Million km2 [29] Million sq mi
Upper Egypt 0.10.043000 BC
Old Kingdom of Egypt 0.25–0.40.100.152800 BC 2400 BC
Akkadian Empire 0.2–0.60.080.232300 BC 2200 BC
Indus Valley Civilisation [a] 0.150.062100 BC
Middle Kingdom of Egypt 0.2–0.50.080.192000 BC 1800 BC
Xia dynasty 0.40.151700 BC
Hyksos 0.650.251600 BC
New Kingdom of Egypt 0.65–1.00.250.391500 BC 1300 BC
Shang dynasty 0.9–1.10.350.421250 BC 1150 BC
New Kingdom of Egypt 0.5–0.60.190.231100 BC 1050 BC
Zhou dynasty 0.35–0.450.140.171000 BC 900 BC
Neo-Assyrian Empire 0.4–1.40.150.54850 BC 650 BC
Median Empire [b] 3.01.16600 BC
Achaemenid Empire 2.5–5.50.972.12550 BC 350 BC
Macedonian Empire 5.22.01323 BC
Seleucid Empire 4.01.54300 BC
Maurya Empire 3.51.35250 BC
Han dynasty 2.50.97200 BC
Xiongnu Empire 5.72.20150 BC
Han dynasty 4.2–6.51.622.51100 BC 200 AD
Roman Empire 4.41.70250350
Sasanian Empire 3.51.35400
Hunnic Empire 4.01.54450
Sasanian Empire 3.51.35500
Göktürk Khaganate 3.0–5.21.162.01550600
Rashidun Caliphate 5.22.01650
Umayyad Caliphate 9.0–11.03.474.25700750
Abbasid Caliphate 8.3–11.03.204.25750800
Tibet2.5–4.70.971.81850950
Song dynasty 3.01.161000
Seljuk Empire 3.0–4.01.161.5410501100
Tibet2.50.971150
Jin dynasty (1115–1234) 2.30.891200
Mongol Empire 18.0–24.06.959.2712501300
Yuan dynasty 11.04.251350
Timurid Empire 4.01.541400
Ming dynasty 4.7–6.51.812.5114501500
Ottoman Empire 4.31.661550
Tsardom of Russia 6.0–12.02.324.6316001700
Russian Empire 14.0–17.05.416.5617501800
British Empire 23.0–34.08.8813.1318501925
Soviet Union 22.58.6919501975
  1. The extent to which this constituted a cohesive political entity is uncertain. If the largest empire in the year 2100 BC was not the Indus Valley Civilisation, it was the First Intermediate Period of Egypt with an area of 0.1 million km2 (0.04 million sq mi).
  2. More recent reassessment of the historical evidence, both archaeological and textual, has led modern scholars to question previous notions of the extent of the realm of the Medes and even its existence as a unified state. [20] If the largest empire in the year 600 BC was not the Median Empire, it was Late Egypt with an area of 0.55 million km2 (0.21 million sq mi).

Largest empires by share of world population

The home and colonial populations of the world's empires in 1908, as given by The Harmsworth Atlas and Gazetteer The Harmsworth atlas and Gazetter 1908 (135853022).jpg
The home and colonial populations of the world's empires in 1908, as given by The Harmsworth Atlas and Gazetteer

Because of the trend of increasing world population over time, absolute population figures are for some purposes less relevant for comparison between different empires than their respective shares of the world population at the time. [39] For the majority of the time since roughly 400 BC, the two most populous empires' combined share of the world population has been 30–40%. Most of the time, the most populous empire has been located in China. [40]

EmpireEmpire population
as percentage of
world population [41]
Year [41]
Qing dynasty 371800
Northern Song dynasty 331100
Western Han dynasty 321
Mongol Empire 311290
Roman Empire 30150
Jin dynasty (266–420) 28280
Ming dynasty 281600
Qin dynasty 24220 BC
Mughal Empire 241700
Tang dynasty 23900
Delhi Sultanate 231350
British Empire 231938
Empire of Japan 201943
Maurya Empire 19250 BC
Former Qin 19376
Northern Zhou 16580
Macedonian Empire 15323 BC
Empire of Harsha 15647
Gupta Empire 13450
Northern Wei 13500
Umayyad Caliphate 13750
Achaemenid Empire 12450 BC
Former Yan 12366
Jin dynasty (1115–1234) 121200
Nazi Germany 121943

See also

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The Roman Empire's population has been estimated at between 59 and 76 million in the 1st and 2nd centuries, peaking probably just before the Antonine Plague. Historian Kyle Harper provides an estimate of a population of 75 million and an average population density of about 20 people per square kilometre at its peak, with unusually high urbanization. During the 1st and 2nd centuries CE, the population of the city of Rome is conventionally estimated at one million inhabitants. Historian Ian Morris estimates that no other city in Western Eurasia would have as many again until the 19th century.

<span class="mw-page-title-main">Achaemenid Empire</span> Ancient Iranian empire (550–330 BC)

The Achaemenid Empire or Achaemenian Empire, also known as the Persian Empire or First Persian Empire, was an Iranian empire founded by Cyrus the Great of the Achaemenid dynasty in 550 BC. Based in modern-day Iran, it was the largest empire by that point in history, spanning a total of 5.5 million square kilometres. The empire spanned from the Balkans and Egypt in the west, West Asia as the base, the majority of Central Asia to the northeast, and the Indus Valley to the southeast.

The cube root law is an observation in political science that the number of members of a unicameral legislature, or of the lower house of a bicameral legislature, is about the cube root of the population being represented. The rule was devised by Estonian political scientist Rein Taagepera in his 1972 paper "The size of national assemblies".

<span class="mw-page-title-main">Massalia</span> Ancient Greek colony

Massalia was an ancient Greek colony (apoikia) on the Mediterranean coast, east of the Rhône. Settled by the Ionians from Phocaea in 600 BC, this apoikia grew up rapidly, and its population set up many outposts for trading in modern-day Spain, Corsica and Liguria. Massalia persisted as an independent colony until the Roman campaign in Gaul in the 1st Century BC. The ruins of Massalia still exist in the contemporary city of Marseille, which is considered the oldest city of France and one of Europe's oldest continuously inhabited settlements.

References

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  7. "World", The World Factbook , Central Intelligence Agency, 18 July 2022, archived from the original on 20 June 2022, retrieved 24 July 2022, land: 148.94 million sq km [...] Antarctica 14,200,000 sq km
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  9. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 Taagepera, Rein (September 1997). "Expansion and Contraction Patterns of Large Polities: Context for Russia" (PDF). International Studies Quarterly . 41 (3): 492–502. doi:10.1111/0020-8833.00053. JSTOR   2600793. Archived (PDF) from the original on 7 July 2020. Retrieved 7 July 2020.
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  12. 1 2 "Área Territorial Brasileira". www.ibge.gov.br (in Portuguese). Brazilian Institute of Geography and Statistics. Archived from the original on 23 October 2016. Retrieved 16 October 2016. A primeira estimativa oficial para a extensão superficial do território brasileiro data de 1889. O valor de 8.337.218 km2 foi obtido a partir de medições e cálculos efetuados sobre as folhas básicas da Carta do Império do Brasil, publicada em 1883. [The first official estimate of the surface area of the Brazilian territory dates from 1889. A value of 8,337,218 km2 was obtained from measurements and calculations made on drafts of the Map of the Empire of Brazil, published in 1883.]
  13. 1 2 Conrad, Sebastian (2014). "The Dialectics of Remembrance: Memories of Empire in Cold War Japan" (PDF). Comparative Studies in Society and History . 56 (1): 8. doi:10.1017/S0010417513000601. ISSN   0010-4175. JSTOR   43908281. S2CID   146284542. Archived (PDF) from the original on 8 July 2020. Retrieved 7 July 2020. In 1942, at the moment of its greatest extension, the empire encompassed territories spanning over 7,400,000 square kilometers.
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  24. 1 2 Hughes, William (1873). A Class-book of Modern Geography: With Examination Questions. G. Philip & Son. p. 175. Archived from the original on 26 August 2020. Retrieved 26 August 2020. In size it is about 500,000 square miles
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  27. 1 2 Cornell, James (1978). Lost Lands and Forgotten People. Sterling Publishing Company. p. 24. ISBN   978-0-8069-3926-1. Zimbabwe continued to grow, reaching the height of its power in 1700, under the rule of the Rozwi people. When the first Europeans arrived on the African coast, they heard tales of a great stone city, the capital of a vast empire. The tales were true, for the Rozwi controlled 240,000 square miles (624,000 sq km)
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