Guang Ji
The mystery surrounding a mammoth tusk plate discovered in Mal'ta more than 80 years ago remains unsolved when archaeological discoveries are viewed only through historical lenses. It is possible to infer that fertility and pregnancy were already a major topic of discussion at that point when seen from the framework of practical application linked into men's worldview. It is hypothesised that humans formerly memorised and calculated the pregnancy stage using the plate. This might be viewed as the beginning of medical preventative thinking. It was crucial to understand how the pregnancy was progressing in order to schedule the delivery under the best possible circumstances. It appears that the plate helped to count it as exactly as possible about 22.000 years ago.
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