Biological warfare, also known as germ warfare, is the use of biological toxins or infectious agents such as bacteria, viruses, insects, and fungi with the intent to kill, harm or incapacitate humans, animals or plants as an act of war. Biological weapons are living organisms or replicating entities. Entomological (insect) warfare is a subtype of biological warfare.
Colonialism is a practice by which a one group of people, social construct, or nation state controls, directs, or imposes taxes or tribute on other people or areas, often by establishing colonies, generally for strategic and economic advancement of the colonizing group or construct. There is no clear definition of colonialism; definitions may vary depending on the use and context.
During the Age of Discovery, a large scale colonization of the Americas, involving a number of European countries, took place primarily between the late 15th century and the early 19th century. The Norse had explored and colonized areas of Europe and the North Atlantic, colonizing Greenland and creating a short term settlement near the northern tip of Newfoundland circa 1000 AD. However, the later colonization by the European powers involving the continents of North America and South America is arguably more well-known.
Guns, Germs, and Steel: The Fates of Human Societies is a 1997 transdisciplinary non-fiction book by the American author Jared Diamond. The book attempts to explain why Eurasian and North African civilizations have survived and conquered others, while arguing against the idea that Eurasian hegemony is due to any form of Eurasian intellectual, moral, or inherent genetic superiority. Diamond argues that the gaps in power and technology between human societies originate primarily in environmental differences, which are amplified by various positive feedback loops. When cultural or genetic differences have favored Eurasians, he asserts that these advantages occurred because of the influence of geography on societies and cultures and were not inherent in the Eurasian genomes.
The Columbian exchange, also known as the Columbian interchange, was the widespread transfer of plants, animals, precious metals, commodities, culture, human populations, technology, diseases, and ideas between the New World in the Western Hemisphere, and the Old World (Afro-Eurasia) in the Eastern Hemisphere, in the late 15th and following centuries. It is named after the Italian explorer Christopher Columbus and is related to the European colonization and global trade following his 1492 voyage. Some of the exchanges were purposeful; some were accidental or unintended. Communicable diseases of Old World origin resulted in an 80 to 95 percent reduction in the number of Indigenous peoples of the Americas from the 15th century onwards, most severely in the Caribbean. The cultures of both hemispheres were significantly impacted by the migration of people from the Old World to the New. European colonists and African slaves replaced Indigenous populations across the Americas, to varying degrees. The number of Africans taken to the New World was far greater than the number of Europeans moving to the New World in the first three centuries after Columbus.
The first European contact in 1492 started an influx of communicable diseases into the Caribbean. Diseases originating in the Old World (Afro-Eurasia) came to the New World for the first time, resulting in demographic and sociopolitical changes due to the Columbian Exchange from the late 15th century onwards. The Indigenous peoples of the Americas had little immunity to the predominantly European diseases, resulting in significant loss of life and contributing to their enslavement and exploitation perpetrated by the European colonists. Waves of enslaved Africans were brought to replace the dwindling Indigenous populations, solidifying the position of disease in triangular trade.
Population figures for the Indigenous peoples of the Americas prior to European colonization have been difficult to establish. By the end of the 20th century, most scholars gravitated toward an estimate of around 50 million, with some historians arguing for an estimate of 100 million or more.
In human geography, McNeill's law is the process outlined in William H. McNeill's book Plagues and Peoples. The process described concerns the role of microbial disease in the conquering of people-groups. Particularly, it describes how diseases such as smallpox, measles, typhus, scarlet fever, and sexually-transmitted diseases have significantly reduced native populations so that they are unable to resist colonization.
1491: New Revelations of the Americas Before Columbus is a 2005 non-fiction book by American author and science writer Charles C. Mann about the pre-Columbian Americas. It was the 2006 winner of the National Academies Communication Award for best creative work that helps the public's understanding of topics in science, engineering or medicine.
Alfred Worcester Crosby Jr. was professor of History, Geography, and American Studies at the University of Texas at Austin, and University of Helsinki. He was the author of books including The Columbian Exchange (1972) and Ecological Imperialism (1986). In these works, he provided biological and geographical explanations for the question why Europeans were able to succeed with relative ease in what he referred to as the "Neo-Europes" of Australasia, North America, and southern South America. America's Forgotten Pandemic (1976) is the first major critical history of the 1918 "Spanish" Flu.
Globalization, the flow of information, goods, capital, and people across political and geographic boundaries, allows infectious diseases to rapidly spread around the world, while also allowing the alleviation of factors such as hunger and poverty, which are key determinants of global health. The spread of diseases across wide geographic scales has increased through history. Early diseases that spread from Asia to Europe were bubonic plague, influenza of various types, and similar infectious diseases.
Ecological Imperialism: The Biological Expansion of Europe, 900-1900 is a 1986 book by environmental historian Alfred W. Crosby. The book builds on Crosby's earlier study, The Columbian Exchange, in which he described the complex global transfer of organisms that accompanied European colonial endeavors.
The 1837 Great Plains smallpox epidemic spanned 1836 through 1840 but reached its height after the spring of 1837, when an American Fur Company steamboat, the SS St. Peter, carried infected people and supplies up the Missouri River in the Midwestern United States. The disease spread rapidly to indigenous populations with no natural immunity, causing widespread illness and death across the Great Plains, especially in the Upper Missouri River watershed. More than 17,000 Indigenous people died along the Missouri River alone, with some bands becoming nearly extinct.
The history of smallpox extends into pre-history. Genetic evidence suggests that the smallpox virus emerged 3,000 to 4,000 years ago. Prior to that, similar ancestral viruses circulated, but possibly only in other mammals, and possibly with different symptoms. Only a few written reports dating from about 500 AD to 1000 AD are considered reliable historical descriptions of smallpox, so understanding of the disease prior to that has relied on genetics and archaeology. However, during the 2nd millennium AD, especially starting in the 16th century, reliable written reports become more common. The earliest physical evidence of smallpox is found in the Egyptian mummies of people who died some 3,000 years ago. Smallpox has had a major impact on world history, not least because indigenous populations of regions where smallpox was non-native, such as the Americas and Australia, were rapidly and greatly reduced by smallpox during periods of initial foreign contact, which helped pave the way for conquest and colonization. During the 18th century the disease killed an estimated 400,000 Europeans each year, including five reigning monarchs, and was responsible for a third of all blindness. Between 20 and 60% of all those infected—and over 80% of infected children—died from the disease.
The North American fur trade is the (typically) historical commercial trade of furs and other goods in North America, predominantly in the eastern provinces of Canada and the northeastern American colonies. The trade was initiated mainly through French, Dutch and English settlers and explorers in collaboration with various First Nations tribes of the region, such as the Huron and the Iroquois; ultimately, the fur trade's financial and cultural benefits would see the operation quickly expanding coast-to-coast and into more of the continental United States and Alaska.
Although a variety of infectious diseases existed in the Americas in pre-Columbian times, the limited size of the populations, smaller number of domesticated animals with zoonotic diseases, and limited interactions between those populations hampered the transmission of communicable diseases. One notable infectious disease of American origin is syphilis. Aside from that, most of the major infectious diseases known today originated in the Old World. The American era of limited infectious disease ended with the arrival of Europeans in the Americas and the Columbian exchange of microorganisms, including those that cause human diseases. Eurasian infections and epidemics had major effects on Native American life in the colonial period and nineteenth century, especially.
In epidemiology, a virgin soil epidemic is an epidemic in which populations that previously were in isolation from a pathogen are immunologically unprepared upon contact with the novel pathogen. Virgin soil epidemics have occurred with European colonization, particularly when European explorers and colonists brought diseases to lands they conquered in the Americas, Australia and Pacific Islands.
Before the 20th century, the use of biological agents took three major forms:
The Massachusetts smallpox epidemic or colonial epidemic was a smallpox outbreak that hit Massachusetts in 1633. Smallpox outbreaks were not confined to 1633 however, and occurred nearly every ten years. Smallpox is caused by two different types of variola viruses: variola major and variola minor. The disease was hypothesized to be transmitted due to an increase in the immigration of European settlers to the region who brought Old World smallpox aboard their ships.
Biological globalization refers to the phenomenon where domesticated species are brought and cultivated in other favorable environments, facilitated by and for the benefit of humans. It has been defined as "the spread of plants domesticated in one area to favorable environments around the world". A growing and changing human population plays an important part on what plants are moved to new locations and which are left untouched.
