An area of genuine supremacy of Girl Geniuses - spiritualist mediums and psychics of the past two centuries

Genius is much commoner in men than women. 

Indeed, in Charles Murray's historical survey of Human Accomplishment; English literature was the only one of the subjects surveyed in which women made a strong showing. 

And, even there, women did not feature among the very highest literary geniuses such as Homer, Virgil, Dante, Shakespeare, and Goethe. 

But there is one neglected but culturally highly significant area in which it seems as if women geniuses have been supreme, in terms of ability and influence; and that is as spiritualist mediums and psychics. 

1. The Fox Sisters, who from 1848 were the origin of Spiritualism, which became a global phenomenon for a century, and still persists (there is a spiritualist church within ten minutes walk of where I write).  

2. Madam HP Blavatsky - the founder of Theosophy; whose international influence is so vast as to be difficult to calculate and of extraordinary breadth. For instance; much of Rudolf Steiner's vast oeuvre derives from Theosophy; and it was the Theosophical Society in London that converted a secular-minded Gandhi to Hinduism. 

3. Mary Baker Eddy founded Christian Science, which grew very fast and went all around the world in a couple of generations to become extremely widespread at its peak - and, although much diminished, it still continues. (There is a Christian Science Reading Room about a mile from here.) 

4. Ellen G White was the prophetess whose insights underpinned the Seventh Day Adventist church - global in reach and apparently still growing, especially in the third world.  

5. Dion Fortune - who was the leading Christian magical occultist of the twentieth century. Her teaching and Fraternity of the Inner Light gave rise to multiple other major magicians and magical societies. Nowadays DF's influence appears to be growing in New Age and Neo-Pagan media.  

These five women (to which some others could be added) constitute a pretty formidable tally in a short space of time.

And the contributions of these women was apparently of a fundamental and foundational (rather than derivative) nature. 

This also fits with the oft-noticed fact (across several religions and churches) that women are intrinsically more often naturally psychic and mediumistic; and can also (like Dion Fortune, who was not naturally a medium) become psychic by effort and training. 

It is no coincidence that the (currently) best known, most beloved, English Christian mystic is Lady Julian of Norwich. 

Although genius is always rare, and in most cultures for most of the time (including our own, now) essentially absent; there are, indeed, solid psychological reasons (e.g. innate personality and intelligence) why genius is overall much more often to be found in men.   

Despite which, over the past half century, it has become a rather dodgy academic-journalistic pastime to manufacture and fake women-"geniuses" in science and the arts (and culture more generally). 

This has been attempted even in several fields in which there are zero women of the first, or even second, rank (such as mathematics, and the composition of classical music). 

Meanwhile, there has been this area in which women really do excel; but which has been ignored!

...Albeit for fairly obvious reasons; in that their activities seem fake, mad, or wicked both to the outgoing Christian traditionalists and the incoming Leftist materialists. 

Nonetheless, if evaluated by the normal standards of our culture; these womens' achievements clearly emerge as both socially significant and distinctively creative - and can then be recognized as products of genius.