Around Yonaguni-jima there are a large number of stones, both above and below sea-level, which show clear evidence of 'wedge-marks' having been cut into the surfaces ready for splitting. Near the 'Tategami-iwa', there is a square-shaped megalith measuring more than 30 feet, and this is called 'Sekihi-iwa'.
Copyright © 2002 Dr. Masaaki Kimura
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Okinawa, Japan
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There is a straight line of holes all of which are 40 - 50 cm away from the edge of the stone at 20 - 30 cm intervals; they are of a funnel shape and are 5 - 6 cm deep. They seem to be 'wedge-marks', though some investigators have suggested they may have been post-holes despite the shallow depth.

Copyright © 2002 Dr. Masaaki Kimura
-- Okinawa, Japan --
There are also many other instances of what appear to be 'wedge-marks' found above and below sea-level. Good examples of this can be seen in the images below, where the white arrows point to the evidence of similar 'toolmarks' on dry land near San'ninu-dai, and also underwater on the 'Upper Terrace' of the No. 1 Monument at Iseki Point

Copyright © 2002 Dr. Masaaki Kimura
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Okinawa, Japan
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Copyright © 2002 Dr. Masaaki Kimura
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Okinawa, Japan
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History's Mysteries
"Do undersea relics near Okinawa offer proof of a sophisticated civilization during the last ice age?
Archeologists have long believed that civilization as they define it -- intelligent, tool-making, monument building, social humans -- began about 5,000 years ago.
But submerged beneath the waves near the Japanese island of Yonaguni is evidence that may well overturn that long-held theory.
A small but persuasive number of scholars and scientists have long thought that "advanced" societies may have existed as long as 10,000 years ago.
Their theories, however well reasoned and defended, have been hamstrung by a lack of evidence.
But recent discoveries of man-made artifacts on the Pacific seafloor may well prove to be the smoking gun that will propel this alternative view of civilization to prominence".
see the evidence with 'unique underwater footage'
of the various Yonaguni structures in the
'History Channel' TV programme
"Japan's Mysterious Pyramids"
NTSC DVD
or
VHS
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