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I started seriously reading Srila Prabhupada's books in Australia 1985 and by 1986 Srila Prabhupada had convinced me "Krishna is the Supreme Personality of Godhead" and "we should surrender to Krishna." I joined the Hare Krishnas in Perth, Western Australia in 1986.
The bridge’s unique curvature and composition by age reveals that it is man made.
The legends as well as Archeological studies reveal that the first signs of human inhabitants in Sri Lanka date back to the a primitive age, about 1,750,000 years ago and the bridge’s age is also almost equivalent.
While Class 4 hand axes are referred to as "formalized tools", bifaces from any stage of a lithic reduction sequence may be used as tools.
(Other biface typologies make five divisions rather than four).
Nor were hand axes and bifacial items exclusive to the Lower Palaeolithic period in the Old World.