The exhibit runs from November 29, 2008 to March 22, 2009. artdaily has a great write-up on it:

ONTARIO.- This Fall, the Royal Ontario Museum (ROM) presents Mysteries of Ancient Ukraine: the Remarkable Trypilian Culture (5400 – 2700 BC), the world’s first large scale exhibition uncovering the secrets of this ancient society which existed in present day Ukraine 7,000 – 5,000 years ago. The mystery of this compelling and sophisticated culture, known for creating the largest settlements anywhere in the world at the time, only to inexplicably disappear, is illuminated through some 300 artifacts, many never before seen in North America. The exhibition is on display in the Museum’s 3rd floor Centre Block from Saturday, November 29, 2008 to Sunday, March 22, 2009.

With Ukraine’s First Lady, Mrs. Kateryna Yushchenko serving as honorary patron, Mysteries of Ancient Ukraine: the Remarkable Tryplian Culture (5400 – 2700 BC) is organized by the ROM in collaboration with the National Museum of the History of Ukraine (Kyiv, Ukraine), the Institute of Archaeology, National Academy of Sciences of Ukraine, the Archaeological Museum of the National Academy of Sciences of Ukraine, the Odessa Archaeological Museum, National Academy of Sciences of Ukraine and the Vinnytsia Regional Museum (Ukraine). The exhibition is based on artifacts first discovered by Ukrainian archaeologist Vikenty Khvoika in 1896, including tools, items of adornment, ceramic figures, earthenware portraits, and pottery. Trypilian pottery, with its sophisticated decorative schemes, attractive forms and fine execution, is generally recognized as second to none in the Neolithic world.