After having dug to a depth of 10 feet last year, New York scientists found traces of copper wire dating back 100 years and came to the conclusion, that their ancestors already had a telephone network more than 100 years ago. Not to be outdone by the New Yorkers, in the weeks that followed, in California an archaeologist dug to a depth of 20 feet, and shortly after, headlines in the LA Times newspaper read: 'California archaeologists have found traces of 200 year old copper wire and have conclud…