Sentence:  Though the spread of this type of decoration in the Aegean has not yet been precisely determined , it seems to appear first in the <WSD>Cyclades</WSD> , which were among the leading exporters of pottery throughout the century . 
Meaning of the word marked with <WSD> tags:  the Bronze Age civilization on the Cyclades islands in the southern Aegean Sea that flourished 3000-1100 BC