investigate the cultural, political, technological, and economic changes and continuities between the Olmec and maya civilizations.

The Olmec and Maya civilizations both existed in pre-Columbian Mesoamerica, but they were separated by several centuries and had distinct cultural, political, technological, and economic features. Let's explore the changes and continuities between these two civilizations:

Cultural Changes:
1. Artistic Style: The Olmec civilization, often referred to as the "mother culture" of Mesoamerica, is known for its colossal stone heads and intricate jade artwork. The Maya, on the other hand, developed their own unique artistic style characterized by intricate stone carvings, stucco decorations, and mural paintings.
2. Religion: While both civilizations were polytheistic, the Maya religion incorporated a complex system of deities, ritual ceremonies, and a sacred calendar that greatly influenced their daily lives. The Olmec religion is less well understood, but it likely influenced later Mesoamerican cultures, including the Maya.
3. Writing Systems: The Olmec civilization did not develop a fully developed writing system, but they used symbols and glyphs to represent certain ideas. The Maya, however, created one of the most sophisticated writing systems in the ancient world, consisting of hieroglyphs that could represent both sounds and concepts.
4. Political Organization: The Olmec civilization is thought to have had a centralized political structure with cities acting as centers of authority. The Maya, on the other hand, developed a decentralized political system characterized by independent city-states, each governed by a divine ruler or king.

Continuities:
1. Agricultural Practices: Both the Olmec and Maya civilizations relied heavily on agriculture. They cultivated maize (corn), beans, and squash, among other crops, using techniques such as slash-and-burn agriculture and terracing.
2. Ballgame: A Mesoamerican ballgame involving a rubber ball was popular in both civilizations. The ballgame held ritual and ceremonial importance, often associated with religious beliefs and political authority.
3. Social Hierarchy: In both civilizations, there was a clear social hierarchy. The ruling elites enjoyed prestige and power, while commoners performed various roles such as farmers, artisans, and laborers.
4. Polytheistic Religion: Both civilizations worshipped numerous gods and had complex ritual practices. Sacrifice, including bloodletting, was an important ritual element in both cultures.

Technological Changes:
1. Architectural Advances: The Maya developed architectural advancements such as using corbel vaulting and arched doorways in their buildings, while the Olmec were known for their massive stone platforms and structures.
2. Calendar Development: The Maya created an elaborate calendar system that incorporated solar and lunar cycles, as well as a Long Count calendar that marked intervals of time spanning several thousands of years. The Olmec likely used a simpler form of calendar to mark important events.

Economic Changes:
1. Trade: Both civilizations engaged in long-distance trade networks, exchanging goods such as jade, obsidian, and precious metals with other Mesoamerican regions.
2. Salt Production: The Maya developed an important industry in salt production and traded it as a valuable commodity. The Olmec is also believed to have utilized local salt resources.

In conclusion, while the Olmec and Maya civilizations shared some cultural, technological, and economic aspects, they also exhibited changes and distinctive developments in their own right. The Maya developed a more advanced writing system, sophisticated political organization, and architectural advancements. Understanding the differences and continuities between these two civilizations provides valuable insights into the rich diversity of pre-Columbian Mesoamerican cultures.