- ...that the conical step pyramids (pictured) and circular public architecture of ancient Mexico's Teuchitlan tradition were unique in Mesoamerica?
- ...that the hieroglyphic inscriptions at the Early Classic Maya city of Bejucal in northern Guatemala were all made within a narrow 40 year period?
- ...that the causes and extent of Olmec influences on Mesoamerican cultures are still being debated long after they were first raised at a conference in Tuxtla Gutiérrez in 1942?