Drill

1000 Inventions and Discoveries – Drill (c35,000BC)

The earliest drills were probably pointed stones that people spun between the palms of their hands.

Later, sticks were spun like this to make fire

People also discovered that they could spin the drill faster by wrapping a cord around it, tying the ends of the cord to a wooden bow, and pushing this back and forth. This bow drill was used in some parts of the world until recent times.