Osiris
In the beginning, the world was nothing but Nu waters, from which the first pyramid-like berm emerged, much like the earth that shows up when the Nile's waters recede. On this mound, Atum gave birth to the deity of the air Shu and the divinity of dampness Tefnut, who in turn gave gave birth to Geb, the god of earth, and Nut, the goddess of sky, who gave birth to Isis and Osiris, the first king and queen of human civilization, respectively. Atum is occasionally referred to as masculine due to the fact that he masturbates in order to generate his females and males children.
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However, he is also known as 'the Great He-She,' a reference to the genderless nature of life prior to the emergence of the two sexes. Osiris became the first ruler of the River Nile and created a large empire, but his brother, the ruler of the desert, got envious of him and summoned him to a banquet, followed by the presentation of a box. 'Is the box the same size as you or larger?' Seth inquired innocuously. Seth asked Osiris to lie down in that box and confirm. Osiris entered the box without a second thought. Seth shut the casket immediately and buried Osiris. He then dismembered his corpse and tossed it into the Nile.
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Isis scoured the lands for fragments of her husband and reassembled them. She then turned to her magical abilities to revive her spouse long enough for him to offer her a child, whom she named Horus, Osiris' true heir. Horus, on the other hand, had to fight numerous battles to demonstrate his superiority over Seth.
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Origin: Mythology of Egypt
Other name of the tale: Osiris Myths