- ... that some experts believe a cylinder seal (pictured) from the prehistoric San Andrés site is evidence for an Olmec writing system?
- ... that Otomi grammar, the grammar of the indigenous Otomi language of Mexico has traits of active/stative alignment, but has no adjectives?
- ... that the large pre-Columbian Maya city of Cihuatán, in central El Salvador, was destroyed by a massive fire within 150 years of being founded?