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There are campaign buttons, jewellery, teddy bears and even women's g-string underpants--and academics and vendors say the items are being sold at unprecedented levels.

It had established Athens as a mighty and redoubtable naval power and it created an unprecedented level of artistic and cultural life even today known simply as Periclean Athens.

Some economists showed their anxiety on unprecedented level of unemployment.

The baby boomer generation, those born between 1946 and 1961, has been a godsend to the fund management industry, with this bulging cohort accumulating unprecedented levels of wealth.