The creation of one of the oldest surviving astronomical documents, from the Babylonian library of Ashurbanipal around 1600 BC - a 21-year record of the appearances of Venus (which the early Babylonians called Nindaranna).
... pathway:
CO2 + 2 H2S → CH2O + H2O + 2S
Some of these produce globules of sulfur as a waste product instead of oygen, while others further oxidize ...