Urban archaeology

Urban archaeology is a sub regulation of archaeology specializing in the material past of towns and cities where long-term human habitation has often gone a rich record of the past. Humans generate waste. Large concentrations of humans manufacture large concentrations of waste. Feces, kitchen waste, broken objects etc. all need to be liable of. Small numbers of people can dispose of their waste locally without heartening vermin or endangering their health. Once people began to exist together in large numbers, around five thousand years ago, such methods began to become impractical. Material would be brought into the new settlements but would rarely be taken out again.