History and Geography
Sources, causation, maps and coordinates.
Study guides
- Primary vs Secondary SourcesSupporting explainer
- Latitude and LongitudeSupporting explainer
- Historical Causation: Why Events HappenSupporting explainer
Key vocabulary
- EquatorThe line of latitude at 0 degrees that circles Earth midway between the poles.
- LatitudeThe angle of a place north or south of the equator, in degrees.
- LongitudeThe angle of a place east or west of the prime meridian, in degrees.
- Primary sourceA first-hand record created at the time of an event or by someone who experienced it.
- Secondary sourceA source created later that analyses or interprets primary sources.