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"The sexagesimal part of this system survives in the modern era in units of time (seconds and minutes) and of trigonometry (360 degrees)."

"The sexagesimal part of this system survives in the modern era in units of time (seconds and minutes) and of trigonometry (360 degrees)."

"The Sumerian writing system was adopted and modified by other contemporaneous Mesopotamian people such as the Akkadians and the Babylonians. As a spoken language, Sumerian died out around the 18th century BCE, but continued as a "learned" written language (much like Latin was during the Middle Ages in Europe). In this way, Sumerian was used continually until the 1st century CE, making it one of the longest used writing system in history."

"Cuneiform was a writing system used between roughly 5,300 and 1,950 years ago, so for more than 3,300 years. That makes it the longest-lasting writing system in known history-"

"Sumerian was spoken in Sumer in southern Mesopotamia (part of modern Iraq) from perhaps the 4th millennium BC until about 2,000 BC, when it was replaced by Akkadian as a spoken language, though continued to be used in writing for religious, artistic and scholarly purposes until about the 1st century AD. Sumerian is not related to any other known language so is classified as a language isolate."

"Cuneiform script[nb 1] is one of the earliest known systems of writing,[1] distinguished by its "wedge-shaped" marks on clay tablets, made by means of a blunt reed for a stylus. The name cuneiform itself simply means "wedge shaped", from the Latin cuneus "wedge" and forma "shape," and came into English usage "probably from Old French cunéiforme."[2]"

animation showing the development of modern Latin alphabet, from Phoenician 900 BC