MassachusettsHISTORY EXPLORERS GRADES 3–8
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Quick glossary
evidence
Information from a source that helps us test a claim.
source
A document, object, image, or account we can examine.
inference
An explanation based on clues; it still needs checking.
migration
Moving from one place to another to live.
immigrant
A person who moves to another country to live.
estimate
An approximate amount, based on available information.
oral history
A recorded interview about someone’s memories and experiences.
community
People connected by a place, relationships, or shared activities.
ancestry
Family origins across generations.
primary source
Evidence created by someone who experienced a time or event.

Leventhal Map & Education Center

ARGO: maps of Revolutionary America

Search historical maps and compare their dates, makers, labels, and purposes. A map can promote a political viewpoint.

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Try an investigation

Search historical maps and compare their dates, makers, labels, and purposes. A map can promote a political viewpoint.

Open the original resource ↗

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Explain what you found

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Explore the six lessons →Image credits & sources →
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