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  1. 1 天前 · The charge was repelled by Union rifle and artillery fire, at great loss to the Confederate army. Setting out on the Fourth of July, Lee led his army on the torturous retreat from the north. Between 46,000 and 51,000 soldiers from both armies were casualties in the three-day battle, the most costly in US history.

    • July 1–3, 1863
  2. 4 天前 · Four UN members (Cuba, Liechtenstein, Monaco and North Korea) do not belong to the IMF hence their economies are not ranked below. Kosovo, despite not being a member of the United Nations, is a member of IMF. Taiwan is not a IMF member but it is still listed in the official IMF indices. Several leading GDP-per-capita (nominal) jurisdictions may ...

  3. 2 天前 · Classic explanations include yellow fever, bubonic plague, influenza, smallpox, chickenpox, typhus, and syndemic infection of hepatitis B and hepatitis D. 1,143,000–3,429,000 (estimated 30–90% of population) [68] [69] 1629–1631 Italian plague (part of the second plague pandemic ) 1629–1631. Italy. Bubonic plague.

  4. en.wikipedia.org › wiki › SiliconSilicon - Wikipedia

    2 天前 · Silicon is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive ...

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