唐球、唐管、唐八棱是什麼珠子？

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什麼是唐球、唐管、唐八棱？其實這些都是古代的貿易珠，都屬於舶來品。「唐」在這裡有兩層意思，第一層：最早人們認為這類珠子始於唐代，所以就以朝代的單字命了名，但很多學者認為，實質上這類珠子最早可以追溯到西漢時期，也就是張騫出使西域時期（絲綢之路）。第二層：「唐」通「糖」，那個時候人們