On Sunday, January 24, 1999 1:45:00 PM UTC+5:45, Big Al wrote:
> What is the most important discovery in the history of man kind?
For sure it has got to be fire. With fire you have everything - safety from the predators in the wild, heat, warmth, light, improved diet and digestive system, progression of civilization, socializing, development of languages etc.
source:
The most important discovery of man
http://myworldjourneys.com/2013/12/26/the-most-important-discovery-of-man-part-1/
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