tery ▁making ▁capabilities ▁and ▁an ▁urban ▁economy ▁at ▁some ▁point ▁during ▁its ▁development . ▁ ▁Initial ly , ▁such ▁finds ▁were ▁interpreted ▁to ▁show ▁that ▁early ▁on ▁the ▁settlement ▁re lied ▁upon ▁past oral ▁and ▁agricult ural ▁activities , ▁and ▁later ▁developed ▁s oph istic ated ▁craft ▁techniques . ▁This ▁interpretation ▁was ▁further ▁supported ▁by ▁the ▁relatively ▁late ▁d ating ▁of ▁the ▁first ▁occurr ences ▁of ▁gla zed ▁cer am ic ▁w are ▁found ▁in ▁Pl iska . ▁At ▁the ▁very ▁earliest ▁these ▁came ▁from ▁the ▁late ▁nin th ▁century , ▁though ▁some ▁certainly ▁dated ▁from ▁the ▁t enth ▁and ▁ele vent h ▁centuries ▁as ▁well . ▁ ▁However , ▁more ▁recent ▁investigation ▁of ▁the ▁As ar - d ere ▁area ▁has ▁shown ▁that ▁the ▁area ▁contained ▁a ▁large ▁waste ▁dispos al ▁site ▁alongside ▁multiple ▁hear th s ▁and ▁kil ns ▁all ▁d ating ▁from ▁the ▁earliest ▁occupation ▁phase . ▁The ▁content ▁of ▁the ▁waste ▁shows ▁that ▁cer am ics ▁were ▁produced ▁early ▁in ▁the ▁settlement ' s ▁history . ▁Other ▁finds ▁from ▁this ▁first ▁phase ▁of ▁occupation ▁( from ▁the ▁e ighth ▁until ▁the ▁beginning ▁of ▁the ▁nin th ▁century ) ▁include ▁those ▁connected ▁with ▁iron ▁processing , ▁such ▁as ▁sl ag , ▁char co al , ▁ash , ▁and ▁p ig ▁iron . ▁F rag ments ▁and ▁solid ▁dro ple ts ▁of ▁glass ▁suggest ▁glass making ▁are ▁also ▁found ▁from ▁this ▁same ▁period . ▁These ▁types ▁of ▁finds ▁are ▁not ▁ext ant ▁in ▁this ▁area ▁in ▁the ▁t enth ▁and ▁ele