Writing
The invention of the first writing systems is roughly contemporary with the beginning of the Bronze Age of the late 4th millennium BC. The Sumerian archaic cuneiform script and the Egyptian hieroglyphs are generally considered the earliest writing systems, both emerging out of their ancestral proto-literate symbol systems from 3400 to 3200 BC with earliest coherent texts from about 2600 BC. It is generally agreed that Sumerian writing was an independent invention; however, it is debated whether Egyptian writing was developed completely independently of Sumerian, or was a case of cultural diffusion.
Maya civilization
The Maya writing system is one of the outstanding achievements of the pre-Columbian inhabitants of the Americas. It was the most sophisticated and highly developed writing system of more than a dozen systems that developed in Mesoamerica. The earliest inscriptions in an identifiably Maya script date back to 300–200 BC, in the Petén Basin. However, this is preceded by several other Mesoamerican writing systems, such as the Epi-Olmec and Zapotec scripts. Early Maya script had appeared on the Pacific coast of Guatemala by the late 1st century AD, or early 2nd century. Similarities between the Isthmian script and Early Maya script of the Pacific coast suggest that the two systems developed in tandem. By about AD 250, the Maya script had become a more formalized and consistent writing system.