John Browns data is not complete though as he didn't allow for daylight
saving , meaning being an hour and 10 years behind the rest of the nation he needed to dig a little deeper.
I heard at around 140 years of depth they found clay tablets that
suggested language had been mastered ,what really stumped the
scholars who were translating the hyrogliphs was back then the locals
could spell beer and today there descendants can't.
An alternative to Mr Browns findings could be there was nothing above 130 years with good reason , that society was reggressing towards to were we find it today.
