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1
Prehistoric
Era
01
Signal Fire
In the context of signaling fires (noroshi), specific plants and wood were often chosen as fuel.
Speaking of fire-making, there's a class at ICU (International Christian University) where students learn to start a fire and cook rice as part of the curriculum.


02
Rock Art
Rock art can be found in various regions worldwide, including Africa, Asia, Europe, and the Americas. Famous examples include the Lascaux Cave in France and the Altamira Cave in Spain.
Incidentally, rock art can be created using chalk, a carving hammer, and a wire brush.
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