Why don't they teach this stuff in public schools?

OVER 600 SITES IN BRITAIN ALL BUILT AS A SINGLE UNIT

STONEHENGE, ENGLAND

This was erected in stages during the period 2800 to 1700 B.C., as a celestial observatory and calculator.

• Forty blue stones, each weighing 5 tons, were transported 240 miles over land and water.

• Other blocks are 25 and 50 tons—and came from a quarry 20 miles distant.

• These 18-foot sandstone pillars were erected in a circular colonnade, and then connected by horizontal slabs atop them. Holes in the slabs fitted exactly onto projections from the flat-top uprights. Somebody had to lift these 20 feet, and (if we accept their astronomical purpose) it all had to be fitted to the nearest inch. (Even today this would not be easy.)

Historical legend asserts that some form of prehistoric machinery provided the lift needed, thus enabling the stones to be laid lightly.

Somehow, by a technology unknown, the Stonehengers figured out beforehand the depth of hole required to match up exactly—working out results in advance that w…