| Invention | When | Where | Notes |
|---|---|---|---|
| Popcorn | 3650 BC | North America | modern New Mexico |
| The Wheel | 3500 BC | Sumeria | in modern Iraq |
| Woodworking | 3500 BC | Egypt | |
| Water Clock | 3500 BC | Sumeria | in modern Iraq |
| Corn, Beans, Squash Cultivation | 3500 BC | Central America | |
| Domestication of Turkey | 3500 BC | Central America | |
| Potato, Manioc Cultivation | 3500 BC | South America | from Andes, Amazon |
| Domestication of Llama | 3500 BC | South America | from Andes |
| Sail Powered Boats | 3500 BC | Egypt | used for transport on the Nile |
| Use of Seals | 3300 BC | Sumeria | cylinder seals used on clay |
| Writing | 3300 BC | Sumeria | pictographs |
| Silk | 3200 BC | China | |
| Footwear | 3200 BC | Europe | deer hide, bear skin |
| Earth and Stone Dams | 3200 BC | Middle East | in present day Jordan |
| Drainage | 3100 BC | Indus Valley | |
| Sundial (Simple Gnomon) | 3000 BC | Egypt | a gnomon is a vertical stick |
| Brick Buildings | 3000 BC | Egypt Sumeria |
|
| Glass | 3000 BC | Middle East | in modern Syria, Lebanon |
| Candles | 3000 BC | Egypt Crete |
|
| Use of Bronze | 3000 BC | Mesopotamia | used in armour |
| Standard Weights | 3000 BC | Egypt | |
| Oil Palm, Yam Cultivation | 3000 BC | Africa | in West Africa |
| Potters Wheel | 3000 BC | Mesopotamia | |
| Cotton Cultivation | 3000 BC | South America Central America |
|
| Reed Boats | 3000 BC | Egypt Mesopotamia |
|
| Use of Coca | 3000 BC | South America | leaves chewed as a narcotic |
| Button | 3000 BC | Indus Valley | re-invented in Germany, 1235 |
The measurement of time became important. The first sundials were vertical sticks. The Egyptians used these to divide the day into 12 hours for the daytime and 12 hours for the night. Because of the seasonal variation in daylength throughout the year, the length of the hours was variable. The Babylonians standardised the length of the hour to 1/24th of thre length of the Solar Day.
The invention of writing was another key moment. Information could be passed around without the need for it to be memorised. Knowledge could be passed between generations and peoples. Sumeria developed the cuniform script around 3300 BC; China first used pictograms c3100 BC; Egypt was using hieroglyphic notation around 3000 BC.
Jade was being carved in China c3600 BC. Yoga was being practiced in India c3000 BC. Bitumin was used in the Middle East from surface deposits, c3000 BC.
The area known as the Sahara began turning into desert c3500 BC. The city of Memphis (near modern Cairo), capital of a united Egypt, was founded by Narmer around 3050 BC. Chur, the oldest European town still inhabited, was settled in (modern) Switzerland in 3000 BC. The town of Ohrid was settled in Macedonia c3000 BC.
The Jewish calendar has its start point in 3761 BC. The Mayan calendar dates from 3300 BC.
Around 3000 BC, there was an extensive use of copper in the Great Lakes region of North America. At the same time pottery was developed in the Americas.
