The Hollow Earth theory has been supported by a not-so-surprising range of groups: from UFO theorists to neo-Nazi groups and conservative Christians, many tinfoilists have worked it into their ideologies. It might have started with Frederick Culmer and his 1886 pamphlet The Inner World, which presented the theory in its definitive form and attempted to prop it up with a few shaky scientific buttresses. You can find the pamphlet in its entirety here. The work is rather long and wordy, and to be honest, I only read about two thirds. An excerpt gives it all in a nutshell:
"The earth is a rotating crust of uneven surface, open at the North and South, through which openings our sun shines by direct and refracted rays beyond their interior equatorial line and the light and heat thereof supplies the interior, the diurnal rotation causing every part to receive in its turn, the genial warmth and light. Thus they have their days and nights, their seed time and harvest, their summer and winter; and they have their sky overhead with its clouds, rain, waterspouts, thunder and lightning. The diameter of the interior is so great that the opposite side cannot be seen, being six thousand miles distant at the equator; our moon sheds her light likewise on them, and the Polar Star is always theirs. The thickness of the earth's crust is one thousand miles, making the diameter at their equator six thousand miles, and diminishing it to one thousand at either pole."
I have faith man's future.
I have faith man's future.