The well-known male ♂ and female ♀ symbols were borrowed from astrology and introduced into use by the botanist Carl Linnaeus in 1751 to denote the sex of plants. Since then, these two symbols have been called gender, that is, by gender.
The Venus symbol (♀) denotes the feminine principle and is used to represent the female body or woman. Usually called "the mirror of Venus", it really looks like a mirror.
The symbol of Mars (♂) represents the masculine principle and is used to denote a male body or a man. This symbol is called the "shield and spear of Mars".
The transgender symbol, which is a combined "mirror of Venus" or "spear and shield of Mars", denotes people with a non-traditional sexual orientation, sometimes a combined arrow and a cross are added to this.