<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Preclassic period in Maya history stretches from the beginning of permanent village life c. 1000 BC. until the advent of the Classic Period c. 250 AD, and is subdivided into Early (prior to 1000 BC), Middle (1000 - 400 BC), and Late (400 BC - 250 AD). Major archaeological sites of this period include Nakbe, Uaxactun, Seibal, San Bartolo, Cival, and El Mirador in Guatemala; Cahal Pech, Blackman Eddy, and Cerros in Belize; and Calakmul, Yaxnohcah, Ichkabal, Komchen, and Xocnaceh in Mexico . </P> <P> The Southern Maya area is believed to have been important to the rise of Maya civilization, with sites such as Kaminaljuyu, Izapa, Monte Alto, and Paso de la Amada . </P>

When did the preclassic maya begin and end
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