Early 20th Century

This includes developments of the early 1900s, late 1900s, early 1910s, and late 1910s. This period is noted for the First World War.

Italy went to war with the Ottoman empire and entered World War I on the side of the Allies. Spain colonized Western Sahara, Spanish Morocco, and Equatorial Guinea and was neutral in World War I. Russia was involved in World War I, but withdrew in defeat and the Bolshevik revolution overthrew the rule of the Tsars.

The Ottoman empire was beset by the young Turks and was defeated in Balkan wars and in World War I. Egypt was nominally under the rule of the Ottoman Empire until 1914, after which it was claimed as a British protectorate. Algeria was ruled as a department of France, but Islamic-based resistance movements began to arise. Abdulaziz ibn Saud began a military campaign to unify Arabia.

The British ruled India. Pakistan was considered part of British India. The British ruled what is now Bangaldesh as part of British India.

China's empire was overthrown and a republic created. The Japanese defeated Russia in the Russo-Japanese war.

The French ruled Vietnam. The Anglo-Siamese treaty of 1909 settled the kingdom's border with British Malaya. The British ruled Burma but met with considerable resistance. A nationalist movement began to arise in the Dutch East Indies. The United States ruled the Philippines with the intention of preparing it for independence.

Tanganyika was ruled by the Germans until they were displaced by the British during and after World War I. Zanzibar was ruled by the British. The British won the Boer war, introduced a system of aparthed, and unified several colonies as the Union of South Africa.

Early 1900s

Late 1900s

Early 1910s

Late 1910s

Other History

Other history including prehistory, antiquity, and classical and medieval history; other modern history including the 16th century, 17th century, 18th century, 19th century, and other 20th century; and the future can be used to examine the early 1900s, late 1900s, early 1910s, and late 1910s.


Sociology including peoples of the world, communities, and social mechanics can be used to examine the early 1900s, late 1900s, early 1910s, and late 1910s.


Institutions including religion, government, economics, education, and family studies can be used to examine the early 1900s, late 1900s, early 1910s, and late 1910s.


Religion including particular religions, religious organization, religious practice, and religious belief can be used to examine the early 1900s, late 1900s, early 1910s, and late 1910s.

Particular religions

Particular religions including Abrahamic religion, Asian religion, Pagan religion, and secularism can be connected.

Abrahamic religion including Islam and Judaism can be connected. Christianity including Catholicism, Protestantism, Orthodoxy, and Mormonism can be connected.

Asian religion including Indian religion, East Asian religion, and Persian religion can be connected. Pagan religion including European pagan religion, Asian pagan religion, African pagan religion, American Indian religion, and neopagan religion can be connected. Secularism can be connected.

Religious organization can be connected. Religious practice can be connected. Religious belief can be connected.


Government including particular governments, government activity, government structure, and law can be used to examine the early 1900s, late 1900s, early 1910s, and late 1910s.

Particular governments including local government can be connected. International government including modern compacts, colonial empires, and traditional empires can be connected. National government can be connected.

Government activity including administration and succession can be connected. State relations including warfare, diplomacy, and intelligence can be connected.

Government structure including government forms, executive systems, legislative systems, judicial systems, and political parties and interest groups can be connected. Law including international law, Western law, Asian law, and tribal law can be connected.


Economics including economic systems, industries, and economic activity can e connected.

Economic systems including economic system behavior, economic system types, networks, and firms can be connected. Industries including social and medical services, commercial and financial industries, communications industries, transportation industries, building related industries, manufacturing and extraction industries, and food and agricultural industries can be connected. Economic activity including consumption, distribution and exchange, and production can be connected.


Education including school systems, educational organization, cultural institutions, teachhing, and research can be connected.

School systems including higher education, secondary education, and primary education can be connected. Educational organization including administration, faculty, students, and course material can be connected. Cultural institutions including performance venues, libraries, and museums can be connected. Teaching can be connected. Research can be connected.


Family studies including particular families, kinship, parenting, and marriage can be connected.

Particular families can be connected. Kinship can be connected. Parenting can be conected. Marriage can be connected.


Culture including behavioral culture, conceptual culture, and material culture can be used to examine the early 1900s, late 1900s, early 1910s, and late 1910s.

Behavioral culture

Behavioral culture including cultural events, recreation and entertainment, occupations, and customs can be connected.

Cultural events including holidays, disasters, expeditions, awards, and gatherings can be connected. Recreation and entertainment including sports, games, theater, dance, and music can be connected. Occupations including service occupations, industrial occupations, communication occupations, transportation occupations, building occupations, and food-related occupations can be connected. Customs including institutional customs, social interaction customs, clothing and dress customs, living and dwelling customs, and vital customs can be connected.

Conceptual culture

Conceptual culture including philosophy, applied science, mathematics, literature, graphic arts, and language can be connected.

Philosophy including philosophical schools and doctrines, special topics, aesthetics, ethics, metaphysics, epistemology, and logic can be connected. Applied science including applied social science, medical science, information science, accounting, navigation, engineering science, and measurement can be connected. Mathematics including mathematical rigorization, statistics, geometry, analysis, algebra, and arithmetic can be connected. Literature including particular works, literary types and genres, literary forms, and oral tradition can be connected. Graphic arts including animation, photography, printmaking, painting, and drawing can be connected. Language including languages of the world, writing, and linguistics can be connected.

Material culture

Material culture including miscellaneous artifacts, communications technology, transportation technology, clothing and dress, foodstuffs, building technology, and industrial technology can be connected.

Miscellanous artifacts such as sculpture, musical instruments, toys, and medicines can be connected. Communications technology including electronic communication, graphic communication, and written communication can be connected. Transportation technology including space technology, air transportation, water transportation, land transportation, and packaging can be connected. Clothing and dress including garments, adornment, and fabrics can be connected. Foodstuffs including prepared foods, preserved and processed foods, and raw foodstuffs can be connected. Building technology including outdoor structures, complete buildings, building components, furnishings, and materials can be connected. Industrial technology including advanced technology, utilities, weaponry, machinery, chemical technology, fuels, and tools can be conncted.


Anthropology including particular groups, human geography, human ecology, physical anthropology, demography, and social foundations can be used to examine the early 1900s, late 1900s, early 1910s, and late 1910s.

Particular groups

Particular groups can be connected.

Royal Society

Human geography

Human geography including Asian geography, European geography, African geography, North American geography, South American geography, and Oceanic geography can be connected.

Asian geography Southwest Asian geography, South Asian geography, Central Asian geography, North Asian geography, East Asian geography, and Southeast Asian geography can be connected. European geography including Balkan geography, Eastern European geography, Central European geography, Italian geography, Northwest European geography, Iberian geography, Scandinavian geography, and Island European geography can be connected. African geography including North African geography, West African geography, North Central African geography, South Central African geography, East African geography, and South African geography can be connected. North American geography including Northeastern American geography, Northwestern American geography, and Southwestern American geography can be connected. South American geography including Amazon geography, Andean geography, and Argentine geography can be connected. Oceanic geography including Australian geography, Pacific Island geography, and Antarctic geography can be connected.

Human ecology

Human ecology including human effects on the environment, relations with other life forms, and environmental effects on people can be connected.

Human effects on the environment can be connected. Relations with other life forms can be connected. Environmental effects on people can be connected.

Physical anthropology

Physical anthropology including human dispersion, racial variation, and human origins can be connected.

Human dispersion can be connected. Racial variation can be connected. Human origins can be connected.


Demography including population change, population size and structure, migration, mortality and morbidity, and birth and fertility can be connected.

Population change can be connected. Population size and structure can be connected. Migration can be connected. Mortality and morbidity can be connected. Birth and fertility can be connected.

Social foundations

Social foundations including social group behavior, social group types, social control, social interaction, and social presentation can be connected.

Social group behavior can be connected. Social group types can be connected. Social control can be connected. Social interaction can be connected. Social presentation can be connected.

Personal studies

Personal studies including biography, psychology, and the human body can be connected.


Biography can be connected.

Psychology including behavioral elements can be connected. Social psychology can be connected. Personality can be connected. Mental disorders can be connected. Developmental psychology can be connected. Behavior patterns can be connected. Mind can be connected.

The human body including life cycle, body functions, and body systems can be connected. Human form and appearance can be connected. Human disease can be connected.


Science including biology, earth science, astronomy, chemistry, and physics can be connected.

Biology including ecology, systematics, organism biology, cell biology, and molecular biology can be connected. Biohistory including Precambrian, Paleozoic, Mesozoic, and Cenozoic life can be connected.

Earth science including geohistory, physical geography, atmospheric science, hydrospheric science, and geology can be connected.

Astronomy including galactic astronomy and stellar astronomy can be connected. Local astronomy including the Sun, planetary systems, minor bodies, and the interplanetary medium can be connected.


Chemistry including chemical systems, chemical change, and chemical substances can be connected.

Chemical systems including organic, inorganic, gas, liquid, and solid chemistry can be connected.Chemical change including nuclear reactions, chemical reactions, and physical changes can be connected. Chemical substances including mixtures, compounds, and elements can be connected.


Physics including the structure of matter, quantum physics, relativity, electromagnetism, thermodynamics, and mechanics can be connected.

The structure of matter including exotic matter, common bulk matter, molecular physics, atomic physics, and subatomic physics can be connected. Neils Bohr developed a theory to explain the spectrum of hydrogenQuantum physics can be connected. Quantum physics was applied to atomic theory. Relativity including general relativity and special relativity can be connected. The special theory and general theory were both proposed by Einstein. Electromagnetism including optics, magnetism, electric current, and electrostatics can be connected. Thermodynamics including statistical mechanics, nonclassical thermodynamics, and classical thermodynamics can be connected. Mechanics including gravitation and celestial mechanics, general mechanics, rigid body mechanics, and particle mechanics can be connected.

Created 7 Mar 2013 Last updated 11 Oct 2017