A fascinating excerpt: "According to Noonan, some 100,000 dirham coins, most deposited between the years 900 and 1030, have been unearthed to date in Sweden alone, and there are more than a thousand recorded individual hoards of five or more coins recorded throughout Scandinavia, the Baltic countries and Russia. In addition to inscriptions, the Muslim coins bear the year and place of minting—vital details for modern numismatists and archeologists. One excellent find in Uppland, Sweden contained a mixture of coins minted in Baghdad, Cairo, Damascus, Isfahan and Tashkent."