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Archaeologists found the world's 
 piece of string. They are 
 because the string is about 50,000 
 old. The string also shows that early 
 called Neanderthals were very 
. Neanderthals became 
 35,000 years ago, but the string shows they understood 
 and textiles. The Neanderthals may have used the string to make 
, bags, rope, mats and 
 things. They were probably as intelligent as 
 today.