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  2. Death rates in the 20th century - Wikipedia

    en.wikipedia.org/wiki/Death_rates_in_the_20th...

    In 1900, the leading cause of death in the United States was influenza with 202.2 deaths per 100,000 people followed by tuberculosis with 194.4, which is a curable illness today. In the middle of 20th century America, the leading cause of death was heart disease with 355.5 deaths per 100,000 followed by cancer at 139.8 deaths per 100,000 ...

  3. Neolithic decline - Wikipedia

    en.wikipedia.org/wiki/Neolithic_decline

    The specific causes of that broad population decline are still debated. [2] While heavily populated settlements were regularly created, abandoned, and resettled during the Neolithic, after around 5400 years ago, a great number of those settlements were permanently abandoned. [ 2 ]

  4. Mass killings under communist regimes - Wikipedia

    en.wikipedia.org/wiki/Mass_killings_under...

    [32] [33] Referencing earlier definitions, [34] Professors of economics Joan Esteban, Massimo Morelli, and Dominic Rohner have defined mass killings as "the killings of substantial numbers of human beings, when not in the course of military action against the military forces of an avowed enemy, under the conditions of the essential ...

  5. Crisis of the late Middle Ages - Wikipedia

    en.wikipedia.org/wiki/Crisis_of_the_late_Middle_Ages

    The mass death and illness of cattle drastically affected dairy production, and the output did not return to its pre-pestilence amount until 1331. [20] Much of the medieval peasants' protein was obtained from dairy, and milk shortages likely caused nutritional deficiency in the European population.

  6. Human extinction - Wikipedia

    en.wikipedia.org/wiki/Human_extinction

    Nuclear war is an often-predicted cause of the extinction of humankind. [1]Human extinction or omnicide is the hypothetical end of the human species, either by population decline due to extraneous natural causes, such as an asteroid impact or large-scale volcanism, or via anthropogenic destruction (self-extinction).

  7. Why did the Baltimore bridge collapse so quickly? Engineering ...

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  8. Harvard Six Cities study - Wikipedia

    en.wikipedia.org/wiki/Harvard_Six_Cities_study

    The study found that people living in the most polluted city (Steubenville) were 26 percent more likely to die than those in the least polluted city (Portage), [7] [11] suggesting an association between particulate pollution and higher death rates in urban areas: "Although the effects of other, unmeasured risk factors cannot be excluded with ...

  9. A Wave Of Violence Sweeps Iraq - The Huffington Post

    data.huffingtonpost.com/2013/12/a-wave-of...

    The death toll in Iraq this year ranges from some 7,900 to 8,700 people so far, making 2013 the most deadly year for the country since 2008, according to IraqBodyCount.org, a U.K.-based website founded in 2003 and run by volunteers to record civilian deaths.