| A | B |
|---|
| caravan | a single file or pack animals journeying together |
| stirrups | loops or rings hung from either side of a horse's saddle to support eh rider's foot in riding and mounting |
| lateen sail | a triangular sail |
| sternpost rudder | a paddle like device uner a shop for steering sailing ships |
| magnetic compass | a device used to determine geographical direction using a magnetic needle that is free to pivot until alighned iwth the magnetic field of the earth |
| merchant | a person who buys and sells goods to make money |
| arid | having little or no rainfall |
| horizon | the line along which the earth and sky seem to meet |
| innovations | new ideas or ways of doing things |
| distorted | shown or told ina way that is partly false |
| Ptolemy | the greatest mapmaker of the Roman Empire |
