Ankh

[tonychanyt]

Britannica:

ankh, ancient Egyptian hieroglyph signifying “life,” a cross surmounted by a loop and known in Latin as a crux ansata (ansate, or handle-shaped, cross). As a vivifying talisman, the ankh is often held or offered by gods and pharaohs. The form of the symbol derives from a sandal strap. As a cross, it has been extensively used in the symbolism of the Coptic Orthodox Church.

The Ankh symbol—sometimes called the key of life or the key of the Nile—represented eternal life in Ancient Egypt.

 

[ozso]

I've always found it interesting that their symbol for life is basically a cross.