A huge asteroid should have hit the earth to cause the world-wide deluge during Noah's time. The impact and the resultant alteration of the moment of inertia produced the tilt to the earth.

Murugan advocated the worship of goddesses. He introduced the Seven Sisters (Saptha Kanniyar) who came to be worshipped progressively as Kali /Durga (Black attire), Neelambikai (Blue), Pachaiamma / Meenakshi (green), Lakshmi (Red), Mariamma (Yellow/ Gold), Saraswathi (White) and Gangai (Neervannam) (invisible / transparent). Again, this relates to the Pleiades constellation among which the seventh started disappearing from the naked eye in due course due to dimming. (Could it be because of the 23 ½ degree tilt to the earth’s axis that occurred during the great deluge of Noah’s time?)