Cycladic civilization (also known as Cycladic culture  or The Cycladic period) is an Early Bronze Age culture of the Cyclades  in the Aegean Sea, spanning the period from approximately 3000 BC-2000  BC.  
History
  Cycladic marble figurine of the Keros Culture type.
Source:Wikipedia
Source:Wikipedia
The significant Late Neolithic and Early Bronze Age  Cycladic culture is best known for its schematic flat female idols  carved out of the islands' pure white marble centuries before the great  Middle Bronze Age ("Minoan") culture arose in Crete, to the south. These  figures have been looted from burials to satisfy the Cycladic  antiquities market since the early 20th century.
A distinctive Neolithic culture amalgamating  Anatolian and mainland Greek elements arose in the western Aegean before  4000 BCE, based on emmer wheat and wild-type barley, sheep and goats,  pigs, and tuna that were apparently speared from small boats (Rutter).  Excavated sites include Saliagos and Kephala (on Keos), which showed  signs of copper-working. Each of the small Cycladic islands could  support no more than a few thousand people, though Late Cycladic boat  models show that fifty oarsmen could be assembled from the scattered  communities (Rutter). When the highly organized palace-culture of Crete  arose, the islands faded into insignificance, with the exception of  Delos, which retained its archaic reputation as a sanctuary through the  period of Classical Greek civilization.
The chronology of Cycladic civilization is divied  into three major sequences: Early, Middle and Late Cycladic. The early  period, beginning ca. 3000 BCE segued into the archaeologically murkier  Middle Cycladic ca. 2500 BCE. By the end of the Late Cycladic sequence  (ca. 2000 BCE) there was essential convergence between Cycladic and  Minoan civilization.
Archaeology
The first archaeological excavations of the 1880s  were followed by systematic work by the British School at Athens and by  Christos Tsountas, who investigated burial sites on several islands in  1898-99 and coined the term "Cycladic civilization". Interest then  lagged, but picked up in the mid-20th century, as collectors competed  for the modern-looking figures that seemed so similar to sculpture by  Jean Arp or Constantin Brancusi. Sites were looted and a brisk trade in  forgeries arose. The context for many of these Cycladic Figurines has  thus been mostly destroyed; their meaning may never be completely  understood. Another intriguing and mysterious object is that of the  Cycladic frying pans. More accurate archaeology has revealed the broad  outlines of a farming and seafaring culture that had immigrated from  Asia Minor ca 5000 BCE. Early Cycladic culture evolved in three phases,  between ca 3300 - 2000 BCE, when it was increasingly submerged in the  rising influence of Minoan Crete.
The culture of mainland Greece contemporary with Cycladic culture is termed Helladic.