Lord Varaha Saving Earth and placing back to in its orbit.

What historical event fascinates you the most? When the asura Hiranyaksha stole the earth and hid her in the primordial waters, Lord Vishnu appeared as Varaha to rescue her. Varaha slew the asura, and retrieved the earth from the ocean, lifting it on his tusks, restoring Bhudevi to her place in the universe.