Human beings are movers. Our species walked out of Africa and settled every continent before it built a single city, and it has never stopped relocating since. Geographers sort the reasons into a simple, powerful pair: push and pull. Push factors drive people out of a place — war, hunger, persecution, disaster, no work, no future. Pull factors draw them toward another — jobs, safety, land, schools, freedom, family already there. Nearly every migration in history, from a village to a hemisphere, is some braid of the two.
There is usually a third strand: connection. People rarely move to a blank spot on the map; they move along lines that someone laid down before them — a cousin who sends word that there’s work, a neighborhood where the language is already spoken, a church or a crew from home. That is why migrations run in chains, and why one village in one country can end up with a twin neighborhood in the Bronx or Brooklyn. The map of any city’s neighborhoods is a map of those chains.
The words matter, so here they are plainly. Migration inside a country is internal — the Great Migration of six million Black Southerners to Northern and Western cities, which you walked in Movement Six, is the American giant of the type. Crossing a border makes a person an emigrant from one country and an immigrant to another — same person, viewed from each end of the journey. And a refugee is someone pushed across a border by danger — war or persecution — a category international law defines and promises to protect.
Money moves along the same lines as people, in both directions. Migrants send earnings home — remittances — and for some countries those transfers add up to more than any single home industry earns. A worker in one economy can be, at the same time, a pillar of another. Whole regions rise on wages earned an ocean away.
None of this is easy, and the numbers never show it. Moving is expensive, bureaucratic, and brave; it usually selects the family’s risk-takers, and it always costs something that doesn’t convert to currency — distance from parents, a language your children will speak better than you. Both things are true: migration builds lives and cities, and it is paid for in separations.
And if you crossed a border, or a country, to be sitting in this course — then this page’s subject is partly you, and so is its expertise. Name your own push, your pull, and your connection, and you have done a geographer’s analysis on the case you know best in the world.