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  2. 1 euro cent coin - Wikipedia

    en.wikipedia.org/wiki/1_euro_cent_coin

    The 1 euro cent coin (€0.01) has a value of one hundredth of a euro and is composed of copper-covered steel. It is the lowest-value coin in the Eurozone; the next highest are the 2 and 5 euro cent coins. All euro coins have a common reverse and a country-specific (national) obverse. The coin has been used since 2002 and was not redesigned in ...

  3. United States dollar - Wikipedia

    en.wikipedia.org/wiki/United_States_dollar

    Combined with the prevailing gold-silver ratio of 15, the standard for gold was calculated at 371/15 = 24.73 grains fine gold or 26.98 grains 22K gold. Rounding the latter to 27.0 grains finalized the dollar's standard to 24.75 grains of fine gold or 24.75 × 15 = 371.25 grains = 24.0566 grams = 0.7735 troy ounces of fine silver.

  4. Euro coins - Wikipedia

    en.wikipedia.org/wiki/Euro_coins

    There are eight euro coin denominations, ranging from one cent to two euro [1] (the euro is divided into a hundred cents). The coins first came into use in 2002. They have a common reverse, portraying a map of Europe, but each country in the eurozone has its own design on the obverse, which means that each coin has a variety of different designs in circulation at once.

  5. 97.5th percentile point - Wikipedia

    en.wikipedia.org/wiki/97.5th_percentile_point

    95% of the area under the normal distribution lies within 1.96 standard deviations away from the mean.. In probability and statistics, the 97.5th percentile point of the standard normal distribution is a number commonly used for statistical calculations.

  6. 0.999... - Wikipedia

    en.wikipedia.org/wiki/0.999...

    The Archimedean property: any point x before the finish line lies between two of the points P n (inclusive).. It is possible to prove the equation 0.999... = 1 using just the mathematical tools of comparison and addition of (finite) decimal numbers, without any reference to more advanced topics such as series and limits.

  7. Mexico - Wikipedia

    en.wikipedia.org/wiki/Mexico

    Mexico, [a] [b] officially the United Mexican States, [c] is a country in the southern portion of North America.Covering 1,972,550 km 2 (761,610 sq mi), [12] it is the world's 13th largest country by area; with a population of over 130 million, it is the 10th most populous country and has the most Spanish speakers in the world. [1]

  8. World War II casualties - Wikipedia

    en.wikipedia.org/wiki/World_War_II_casualties

    World War II deaths by country World War II deaths by theater. World War II was the deadliest military conflict in history.An estimated total of 70–85 million deaths were caused by the conflict, representing about 3% of the estimated global population of 2.3 billion in 1940. [1]

  9. Christianity - Wikipedia

    en.wikipedia.org/wiki/Christianity

    [290] [291] For the last hundred years, the Christian share has stood at around 33% of the world population. This masks a major shift in the demographics of Christianity; large increases in the developing world have been accompanied by substantial declines in the developed world, mainly in Western Europe and North America. [ 292 ]