| A | B |
| built to keep invaders out of China | Great Wall |
| length of the Great Wall | 4,600 miles |
| a network of overland trade routes from China to Persia | Silk Road |
| Silk was traded for these items on the Silk Road by Chinese, Indian, Arab, and Italian traders. | oranges, gold, horses |
| invented by the Chinese and used to help sailors find directions at sea | magnetic compass |
| largest desert in the world | Sahara |
| became king of Songhai in 1464 | Sunni Ali |
| Sunni Ali did this to people that he conquered. | enslaved |
| Sunni Ali wanted traders of these items to come to Songhai. | gold, ivory, cloth, and salt |
| In 1274, he was one of the first Europeans to reach Asia. | Marco Polo |
| Marco Polo brought these things to Europe from Asia. | ivory, jade, silk |
| In the middle of the 1400's, these countries sent exploreres throughout the world in search of a sailing route to Asia. | Portugal and Spain |
| This invention by Johannes Gutenberg in about 1436 helped to spread learning through the use of books. | printing press |
| Europeans need these from Asia because they could not refigerate food. | spices |
| used to keep food from spoiling | pepper and cloves |
| Although he was not an explorer, he proved that it was possible to reach Asia by ship. | Prince Henry the Navigator |
| Portuguese explorer who rounded the Cape of Good Hope. | Bartholomeu Dias |
| This Portuguese sea captain showed Europeans a way to Asia without using the Silk Road. | Vasco da Gama |