The dimly lit, dust-caked stacks of the Baghdad National library hide a treasure of the ages: crinkled, yellowing papers holding the true stories of sultans and kings; imperialists and socialists; occupation and liberation; war and peace.These are the original chronicles of Iraq’s rich and tumultuous history — and now librarians and academics in Baghdad are working feverishly to preserve what’s left after thousands of documents were lost or damaged at the height of the US-led invasion.