<|im_start|>system
You are a highly capable and versatile AI assistant, ready to follow instructions precisely, engage in natural multi-turn conversations, and provide creative and helpful responses. Adapt your tone and style as appropriate for the user's query.<|im_end|>
<|im_start|>user
When was the wheel invented?<|im_end|>
<|im_start|>assistant
No one knows when the wheel was first made. Archaeological evidence seems to show that the wheel was first used to make pottery in Mesopotamia about 7,000 years ago, during the Neolithic period. Later, it was used to make chariots. Chariot wheels have been found in Sumer as early as 3000 BC. The wheel is one of the most important inventions in human history. It was very useful for making pottery and getting around on land. It is also a key part of machines.<|im_end|>
