She, like the other gods, were gods from the start. They did not have to qualify or anything.
She was born one.
Hera was born a goddess, for her mother Rhea and her father Cronus were Titan - children of Gaea and Ouranus.
Hebe was born a goddess, the daughter of Greek gods Zeus and Hera.
Hera is the Goddess of Marriage.
Hera was a daughter of Cronus and Rhea (titans) which makes her a goddess by default.
Hera is the goddess of marriage
Hera is the goddess of marriage and queen of the gods.
Hera protected women in marriage, since she was the goddess of marriage.
Hera was the goddess of marriage and she was he wife of Zeus making her the queen of the heavens.
Hera was the queen of gods and the goddess of marriage
Hera is queen of goddesses and is goddess of marriage
Hera was the goddess of marriage and childbirth.