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Surrounded by farms relying on primitive agriculture , they built the city-states of Copan , Tikal , and Chichen Itza along their major trade routes , as well as temples , statues of gods , pyramids , and astronomical observatories -LRB- Figure -RRB- . However , because of poor soil and a drought that lasted nearly two centuries , their civilization declined by about 900 CE and they abandoned their large population centers . The Spanish found little organized resistance among the weakened Maya upon their arrival in the 1520s . However , they did find Mayan history , in the form of glyphs , or pictures representing words , recorded in folding books called codices -LRB- the singular is codex -RRB- . In 1562 , Bishop Diego de Landa , who feared the converted natives had reverted to their traditional religious practices , collected and burned every codex he could find .
Please check all the words that can be used instead of the target word in the same context. Note that the morphology of the target (third person singular, past tense etc.) is considered to be applied to the candidate automatically in the process of paraphrasing.