The best artistic representation of the wheel is from the Assyrian 9th century BCE Sippar Tablet. The tablet commemorated king Nabu-apal-iddin’s building of a temple at Sippar for the solar deity, Shamash. The solar disk on the tablet features a star-like cross, superimposed on an X of wavy lines, representing water. In the sky, the cross marked the solstice and equinox periods. The ribbons of water corresponded with Aquarius, Gemini, Leo, and Sagittarius.