 Text search
 Related images
 HistoryWorld
 Link
 Map
Click the icons to visit linked content. Hover to see the search terms |
|  |
| | | | Technology |
| | | | | | | |
|
| c. 4400 BC |
| | | The first evidence of a loom comes from this period in Egypt, but some simple method of holding the warp must be as old as weaving | |
| |
|
| c. 4000 BC |
| | | In Mesopotamia, and on the grass steppes of southern Russia, oxen are used to pull heavy loads on sledges | |
| |
|
| c. 4000 BC |
| | | A simple hand-held plough is in use in Egypt and Mesopotamia, at least 1000 years before a heavier version is pulled by oxen | |
| |
|
| c. 3800 BC |
| | | Copper is extracted from ore by smelting at various sites in Iran | |
| |
|
| c. 3100 BC |
| | | Writing is developed, at Sumer, as cuneiform script on clay tablets | |
| |
|
| c. 3000 BC |
| | | An easily portable writing surface is developed, from the papyrus plant of the Nile | |
| |
|
| c. 3000 BC |
| | | The lever is in use in both Mesopotamia and Egypt | |
| |
|
| c. 3000 BC |
| | | Wheels are in use on carts, particularly where wood is easily available and the ground rough - as in the forests of Europe | |
| |
|
| c. 3000 BC |
| | | Potters in Mesopotamia turn their pots on wheels | |
| |
|
| c. 2850 BC |
| | | The Chinese discover that the cocoon of a certain worm can be unwound, spun as thread and then woven - thus creating silk | |
| |
|
| | | | | |
| |