about the brutality committed by Western nations: the personifications of England, the United States, and Germany carrying spears topped by the severed heads of Tibet, the Philippines, and Southwest Africa respectively. The caption describes this as "The advance guard of civilization". , May 1946. The impacts of colonisation are immense and pervasive. Various effects, both immediate and protracted, include the spread of virulent diseases, causing
pandemics,
oppression, unequal social relations through
othering and economically through exclusion,
detribalization,
appropriation,
exploitation,
enslavement,
medical advances, the creation of new institutions,
abolitionism, changing infrastructure, and technological progress. Colonial practices also spur the spread of conquerors' languages, literature and cultural institutions, while endangering or obliterating those of
indigenous peoples, possibly
amounting to genocide. Despite the colonial suppression and narrative, colonised people may be able to build on their agency, potentially having influence on the imperial country or even challenging it. Often though this has been met with
cultural appropriation and
forced assimilation. With respect to international borders, Britain and France traced close to 40% of the entire length of the world's international boundaries.
Economy, trade and commerce Economic expansion, sometimes described as the
colonial surplus, has accompanied imperial expansion since ancient times. Greek trade networks spread throughout the Mediterranean region while Roman trade expanded with the primary goal of directing tribute from the colonised areas towards the Roman metropole. According to
Strabo, by the time of emperor
Augustus, up to 120 Roman ships would set sail every year from
Myos Hormos in
Roman Egypt to India. With the development of trade routes under the
Ottoman Empire, (blue) and the rival
Manila-Acapulco galleons trade routes (white) established in 1568
Aztec civilisation developed into an extensive empire that, much like the Roman Empire, had the goal of exacting tribute from the conquered colonial areas. For the Aztecs, a significant tribute was the acquisition of sacrificial victims for their religious rituals. On the other hand, European colonial empires sometimes attempted to channel, restrict and impede trade involving their colonies, funneling activity through the metropole and taxing accordingly. Despite the general trend of economic expansion, the economic performance of former European colonies varies significantly. In "Institutions as a Fundamental Cause of Long-run Growth", economists
Daron Acemoglu,
Simon Johnson and
James A. Robinson compare the economic influences of the European colonists on different colonies and study what could explain the huge discrepancies in previous European colonies, for example, between West African colonies like
Sierra Leone and
Hong Kong and
Singapore. According to the paper, economic institutions are the determinant of the colonial success because they determine their financial performance and order for the distribution of resources. At the same time, these institutions are also consequences of political institutions – especially how
de facto and
de jure political power is allocated. To explain the different colonial cases, we thus need to look first into the political institutions that shaped the economic institutions. Through the rise of European colonialism came a large push for development and industrialisation of most economic systems. When working to improve productivity, Europeans focused mostly on male workers. Foreign aid arrived in the form of loans, land, credit, and tools to speed up development, but were only allocated to men. In a more European fashion, women were expected to serve on a more domestic level. The result was a technologic, economic, and class-based gender gap that widened over time. Within a colony, the presence of extractive colonial institutions in a given area has been found have effects on the modern day economic development, institutions and infrastructure of these areas.
Slavery and indentured servitude European nations entered their imperial projects with the goal of enriching the European metropoles. Exploitation of non-Europeans and of other Europeans to support imperial goals was acceptable to the colonisers. Two outgrowths of this imperial agenda were the extension of slavery and indentured servitude. In the 17th century, nearly two-thirds of English settlers came to North America as indentured servants. European slave traders brought large numbers of African slaves to the Americas by sail. Spain and Portugal had
brought African slaves to work in African colonies such as
Cape Verde and
São Tomé and Príncipe, and then in Latin America, by the 16th century. The British, French, and Dutch joined in the slave trade in subsequent centuries. The European colonial system took approximately 11 million Africans to the Caribbean and to North and South America as slaves. , 18th century
Abolitionists in Europe and Americas protested the inhumane treatment of African slaves, which led to the elimination of the slave trade (and later, of most forms of slavery) by the late 19th century. One (disputed) school of thought points to the role of abolitionism in the
American Revolution: while the British colonial metropole started to move towards outlawing slavery, slave-owning elites in the
Thirteen Colonies saw this as one of the reasons to fight for their post-colonial independence and for the right to develop and continue a largely slave-based economy. British colonising activity in
New Zealand from the early 19th century played a part in ending slave-taking and slave-keeping among the indigenous
Māori. On the other hand, British colonial
administration in Southern Africa, when it officially abolished slavery in the 1830s, caused rifts in society which arguably perpetuated slavery in the
Boer Republics and fed into the philosophy of
apartheid. , 1823 The labour shortages that resulted from abolition inspired European colonisers in Queensland, British Guaiana and Fiji (for example) to develop new sources of labour, re-adopting a system of indentured servitude.
Indentured servants consented to a contract with the European colonisers. Under their contract, the servant would work for an employer for a term of at least a year, while the employer agreed to pay for the servant's voyage to the colony, possibly pay for the return to the country of origin, and pay the employee a wage as well. The employees became "indentured" to the employer because they owed a debt back to the employer for their travel expense to the colony, which they were expected to pay through their wages. In practice, indentured servants were exploited through terrible working conditions and burdensome debts imposed by the employers, with whom the servants had no means of negotiating the debt once they arrived in the colony. India and China were the largest source of indentured servants during the colonial era. Indentured servants from India travelled to British colonies in Asia, Africa and the Caribbean, and also to French and Portuguese colonies, while Chinese servants travelled to British and Dutch colonies. Between 1830 and 1930, around 30 million indentured servants migrated from India, and 24 million returned to India. China sent more indentured servants to European colonies, and around the same proportion returned to China. Following the
Scramble for Africa, an early but secondary focus for most colonial regimes was the suppression of slavery and the slave trade. By the end of the colonial period they were mostly successful in this aim, though slavery persists in Africa and in the world at large with much the same practices of
de facto servility despite legislative prohibition.
Alexander the Great exploited this military foundation further during his conquests. The Spanish Empire held a major advantage over
Mesoamerican warriors through the use of weapons made of stronger metal, predominantly iron, which was able to shatter the blades of axes used by the
Aztec civilisation and others. The use of
gunpowder weapons cemented the European military advantage over the peoples they sought to subjugate in the Americas and elsewhere.
End of empire with
Lord Pethwick-Lawrence, British Secretary of State for India, after a meeting on 18 April 1946 The populations of some colonial territories, such as Canada, enjoyed relative peace and prosperity as part of a European power, at least among the majority. Minority populations such as
First Nations peoples and French-Canadians experienced
marginalisation and resented colonial practices. Francophone residents of
Quebec, for example, were vocal in opposing conscription into the armed services to fight on behalf of Britain during World War I, resulting in the
Conscription crisis of 1917. Other European colonies had much more pronounced conflict between European settlers and the local population. Rebellions broke out in the later decades of the imperial era, such as India's
Sepoy Rebellion of 1857. The territorial boundaries imposed by European colonisers, notably in central Africa and South Asia, defied the existing boundaries of native populations that had previously interacted little with one another. European colonisers disregarded native political and cultural animosities, imposing peace upon people under their military control. Native populations were often relocated at the will of the colonial administrators. The
Partition of British India in August 1947 led to the
Independence of India and the
creation of Pakistan. These events also caused much bloodshed at the time of the migration of immigrants from the two countries. Muslims from India and Hindus and Sikhs from Pakistan migrated to the respective countries they sought independence for.
Post-independence population movement in
London is a celebration led by the
Trinidadian and Tobagonian British community. In a reversal of the migration patterns experienced during the modern colonial era, post-independence era migration followed a route back towards the imperial country. In some cases, this was a movement of settlers of European origin returning to the land of their birth, or to an ancestral birthplace. 900,000 French colonists (known as the
Pied-Noirs) resettled in France following Algeria's independence in 1962. A significant number of these migrants were also of Algerian descent. 800,000 people of
Portuguese origin migrated to Portugal after the independence of former colonies in Africa between 1974 and 1979; 300,000 settlers of Dutch origin migrated to the Netherlands from the
Dutch West Indies after Dutch military control of the colony ended. After WWII 300,000 Dutchmen from the
Dutch East Indies, of which the majority were people of Eurasian descent called
Indo Europeans, repatriated to the Netherlands. A significant number later migrated to the US, Canada, Australia and New Zealand. Global travel and migration in general developed at an increasingly brisk pace throughout the era of European colonial expansion. Citizens of the former colonies of European countries may have a privileged status in some respects with regard to immigration rights when settling in the former European imperial nation. For example, rights to dual citizenship may be generous, or larger immigrant quotas may be extended to former colonies. In some cases, the former European imperial nations continue to foster close political and economic ties with former colonies. The
Commonwealth of Nations is an organisation that promotes cooperation between and among Britain and its former colonies, the Commonwealth members. A similar organisation exists for former colonies of France, the
Francophonie; the
Community of Portuguese Language Countries plays a similar role for former Portuguese colonies, and the
Dutch Language Union is the equivalent for former colonies of the Netherlands. Migration from former colonies has proven to be problematic for European countries, where the majority population may express hostility to ethnic minorities who have immigrated from former colonies. Cultural and religious conflict have often erupted in France in recent decades, between immigrants from the
Maghreb countries of north Africa and the majority population of France. Nonetheless, immigration has changed the ethnic composition of France; by the 1980s, 25% of the total population of "inner Paris" and 14% of the metropolitan region were of foreign origin, mainly Algerian.
Introduced diseases '', 1540–1585) Encounters between explorers and populations in the rest of the world often introduced new diseases, which sometimes caused local epidemics of extraordinary virulence. For example,
smallpox, measles, malaria, yellow fever, and others were unknown in pre-Columbian America. Half the native population of
Hispaniola in 1518 was killed by smallpox. Smallpox also ravaged
Mexico in the 1520s, killing 150,000 in
Tenochtitlan alone, including the emperor, and
Peru in the 1530s, aiding the European conquerors.
Measles killed a further two million Mexican natives in the 17th century. In 1618–1619, smallpox wiped out 90% of the
Massachusetts Bay Native Americans. Smallpox epidemics in 1780–1782 and
1837–1838 brought devastation and drastic depopulation among the
Plains Indians. Some believe that the death of up to 95% of the
Native American population of the
New World was caused by
Old World diseases. Over the centuries, the Europeans had developed high degrees of
immunity to these diseases, while the
indigenous peoples had no time to build such immunity. Smallpox decimated the native population of
Australia, killing around 50% of
indigenous Australians in the early years of British colonisation. It also killed many New Zealand
Māori. As late as 1848–49, as many as 40,000 out of 150,000
Hawaiians are estimated to have died of
measles,
whooping cough and
influenza. Introduced diseases, notably smallpox, nearly wiped out the native population of
Easter Island. In 1875,
measles killed over 40,000
Fijians, approximately one-third of the population. The
Ainu population decreased drastically in the 19th century, due in large part to infectious diseases brought by Japanese settlers pouring into
Hokkaido. Conversely, researchers have hypothesised that a precursor to
syphilis may have been carried from the New World to Europe after
Columbus's voyages. The findings suggested Europeans could have carried the nonvenereal tropical bacteria home, where the organisms may have mutated into a more deadly form in the different conditions of Europe. The disease was more frequently fatal than it is today; syphilis was a major killer in Europe during the
Renaissance. The
first cholera pandemic began in
Bengal, then spread across India by 1820. Ten thousand British troops and countless Indians died during this
pandemic. Between 1736 and 1834 only some 10% of
East India Company's officers survived to take the final voyage home.
Waldemar Haffkine, who mainly worked in India, who developed and used
vaccines against
cholera and
bubonic plague in the 1890s, is considered the first
microbiologist. According to a 2021 study by
Jörg Baten and Laura Maravall on the
anthropometric influence of colonialism on Africans, the
average height of Africans decreased by 1.1 centimetres upon colonization and later recovered and increased overall during colonial rule. The authors attributed the decrease to diseases, such as
malaria and
sleeping sickness,
forced labor during the early decades of colonial rule, conflicts,
land grabbing, and
widespread cattle deaths from the
rinderpest viral disease.
Countering disease As early as 1803, the
Spanish Crown organised a mission (the
Balmis expedition) to transport the smallpox vaccine to the
Spanish colonies, and establish mass vaccination programs there. By 1832, the federal government of the United States established a
smallpox vaccination program for Native Americans. Under the direction of
Mountstuart Elphinstone a program was launched to propagate
smallpox vaccination in India. From the beginning of the 20th century onwards, the elimination or control of disease in tropical countries became a driving force for all colonial powers. The
sleeping sickness epidemic in Africa was arrested due to mobile teams systematically screening millions of people at risk. In the 20th century, the world saw the biggest increase in its population in
human history due to lessening of the
mortality rate in many countries due to
medical advances. According to the
UN, the
world population has grown from 1.6 billion in 1900 to over eight billion today. == Botany ==