Global silver trade from the 16th to 18th centuries American mining for the early part of the 16th Century. Mining in the Americas became formally industrialized when the process of mercury amalgamation became popularized. Mercury amalgamation was invented by a Spaniard in central Mexico in the 1550s. Historians dispute what individual was the first to invent the process, however most agree that it was a Spaniard. Mercury was the one of the highest costs of production for the Americas, since much of it had to be shipped. The ratio of Mercury to silver produced was about two to one. Furthermore, German miners introduced the stamp mill and lead smelting
Four Centuries of Modern Iraq was still lack of ability and resources to be independent and self-government. Four Centuries of Modern Iraq Four Centuries of Modern Iraq is a historic book authored by Stephen Hemsley Longrigg published first time in United Kingdom on 1925. It covers events in Iraq between early 16th century to early 20th century when Iraq was a neglected part of the Ottoman Empire. Few books have been written about Iraq in that period. The author uses oriental sources, the books of Iraqi historians and the experience of his long residence in Iraq to discuss the country’s turbulent history. The author concludes