Recently, the Maya site of Nakum has been the subject of intensive research by the Institute of Archaeology of the Jagiellonian University, Kraków, Poland. This work has significantly enriched our knowledge of the ancient Maya of northeastern Guatemala, especially during the so-called Terminal Preclassic or Protoclassic period (ca. 100 B.C.-A.D. 300), when many Maya centers suffered decline. The Protoclassic covers the transitional moment between two important periods of Maya chronology, the Preclassic and Classic, but so far, the typical ceramic components of this phase have been found in only a handful of Maya sites. Our research indicates that Nakum underwent important building programs and stable cultural growth during the discussed period. Here we discuss evidence of architectural and cultural activity at Nakum during the Terminal Preclassic within a wider geographic context. Our research highlights the role that Nakum played within Maya geopolitics in northeastern Guatemala and also contributes to the understanding of sociocultural processes that the Maya civilization was undergoing during the as-yet poorly understood Protoclassic period.