chapter seven mwc collective artists guild 's philosophy and policy on off-planet installations approximate earth locations and date : teotihuacan ( mexico ) and sudan ( africa ) pyramids , 250 bce from : mwc intergalactic council , earth subcommittee to : many worlds collective artists guild ( mwc ag ) pursuant to : teotihuacan ( mexico ) and sudan ( africa ) pyramids , implemented as of earth dates circa 250 bce disciplinary hearing moving materials between galaxies without the proper permits installations that are almost exact duplicates of one another on the same planet on completely separate continents and across hundreds of linear earth years text and pictographs in several separate but lexicographically similar languages for cultures that have no apparent encounters .