Unit 6.6 — Causes of Migration, 1750–1900

Topic 6.4 already introduced indentured servitude as the labor system behind export economies. Topic 6.5 covered economic control without colonization. Topic 6.6 pulls back to ask a broader question: what specifically drove the massive scale of human movement — voluntary and forced — across the world from 1750 to 1900? The exam organizes causes into a small number of specific, testable categories rather than a vague "people moved for opportunity."

Push and pull factors: the basic framework

The exam's standard organizing tool sorts every migration case into two questions: what made staying home untenable, and what made a particular destination attractive. On the "staying home untenable" side sit conditions like a famine or natural disaster wiping out a livelihood, a shortage of land or work, persecution for one's religion or ethnicity, and the direct disruption of war — historians label this whole cluster push factors. On the "attractive destination" side sit the things that make one specific place, rather than migration in the abstract, the answer: available work, schooling, an existing community of relatives or countrymen already settled there, or the freedom to practice one's religion openly — labeled pull factors. A strong essay never names only one side; nearly every case in this topic requires identifying both what a migrant left and why they chose that particular destination rather than any other.

Demographic pressure: a specific, numeric cause

Population growth itself functioned as a genuine push factor, and the exam wants a concrete number here: Europe's population roughly doubled across the 19th century, from about 188 million in 1800 to 400 million by 1900. That surge outpaced available agricultural land and urban jobs in many regions, creating direct pressure to migrate — connecting directly back to Topic 5.9's urbanization and Topic 5.10's continuity of largely agrarian life outside industrial centers, since not every region's economy could absorb this much population growth internally.

Industrialization's dual pull: cities and colonies

Industrialization (Units 5–6) created labor demand in two distinct places worth distinguishing: it pulled people from rural areas into rapidly growing industrial cities within their own countries (internal, rural-to-urban migration, already previewed in Topic 5.9), and it pulled people across national borders entirely, toward industrializing nations and colonial territories that needed labor for factories, mines, and the export-economy plantations described in Topic 6.4.

Coerced and semi-coerced labor migration: not fully free movement

A precise point the exam tests directly: not all 19th-century migration was voluntary, and not all of it was fully coerced either — much of it fell into a genuine middle category. The new global capitalist economy relied heavily on indentured servitude, especially Chinese and Indian contract laborers (sometimes called "coolie" labor in period sources) recruited to work fixed-term contracts on plantations and infrastructure projects across the colonized world (Topic 6.4's Caribbean, Mauritius, and Fiji plantations). A signed contract is what legally separated this system from outright chattel slavery (Topic 4.7), but the label was often closer to fiction than fact: recruiters routinely misrepresented the pay, distance, and length of service a worker was agreeing to, and once bound, laborers found themselves subject to conditions harsh enough that most historians classify indentured servitude as coercion wearing the paperwork of a free agreement. Convict labor, forcibly transported to colonial territories, supplied a further genuinely coerced migration stream. The exam wants you to place migration along a real spectrum — from choice-driven European migration to semi-coerced indentured servitude to fully coerced convict transport — rather than treating "migration" as one undifferentiated category.

Transportation technology as an enabling cause

None of this scale of movement was possible without Topic 5.5's steamships and railroads: a journey that once meant months under sail with no realistic prospect of return shrank to weeks, at a fare within reach of ordinary laborers rather than only the wealthy. A specific, testable nuance follows from that shrinking travel time — migration stopped being an irreversible, one-way commitment for many people. A worker could cross an ocean for a harvest season or a construction project and come home again, a pattern historians call circular migration, one that simply wasn't practical when a single crossing consumed a season of its own. This directly ties Topic 6.6 back to the technological engine introduced in Topic 5.5.

Why this matters for the exam

Topic 6.6 rewards naming a specific cause category (demographic pressure, industrial pull, coerced/semi-coerced labor, transportation technology) rather than a vague "people migrated for a better life." Keep the push/pull framework, the specific European population figures, and the free-to-coerced spectrum (voluntary migrants, indentured servants, convict labor) ready as precise, citable evidence — and expect this topic to connect directly into Topic 6.7's effects of that same migration.