Mayans invented the concept of zero by 36 BC

Evidence

By 36 BC they had developed the concept of zero. They worked with numbers in the hundreds of millions and used extensive dating systems, making possible both their observations of the cosmos and their unique calendar that marked the passage of time into the future. Modern astronomers have marveled at the accuracy of Mayan charts of the movements of the moon and planets, which were used to predict eclipses and other events. — Roxanne Dunbar-Ortiz, An Indigenous Peoples’ History of the…, 49

Categorization

• XREF: The zero claim is usually credited to India in general knowledge — this counters that framing directly.
• corroborated: 2 independent passages support this claim — Roxanne Dunbar-Ortiz, An Indigenous Peoples’ History of the…, 49