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A line that separates two countries, states, or areas.
Border
A region of land under the jurisdiction of a government or group.
Territory
Political map
A map that shows countries, capitals, and borders.
A border formed by natural features like rivers or mountains.
Natural border
A place on a border where people or goods are inspected.
Checkpoint
An advanced society with cities, writing, and organized systems.
Civilization
A symbol used in the Mayan writing system.
Glyph
A place of worship; the Mayans built large temples.
Temple
A system for keeping track of days; the Mayans had a complex calendar.
Calendar
A large stone structure with a square base and four sides that meet at the top.
Pyramid
The movement of people from one place to another.
Migration
A structure built to cross over a river, road, or obstacle.
Bridge
Something that blocks or limits movement, access, or progress.
Barrier
A man-made barrier that divides or protects an area.
Wall
A serious disagreement, often about land or borders.
Conflict
The study of stars and planets; Mayans were expert astronomers.
Astronomy
A ceremony or set of actions performed for religious purposes.
Ritual
A city that governs itself and its surrounding land; common in Mayan times.
City-state
Farming; the Mayans grew corn (maize), beans, and squash.
Agriculture
A book made of bark or paper; the Mayans used codices to record knowledge.
Codex