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  2. History of United States postage rates - Wikipedia

    en.wikipedia.org/wiki/History_of_United_States...

    However, this legislation was set to expire in April 2016. As a result, the Post Office retained one cent of the price change as a previously allotted adjustment for inflation, but the price of a first-class stamp became 47 cents: for the first time in 97 years (and for the fourth time in the agency's history) the price of a stamp decreased. [32]

  3. List of airline codes - Wikipedia

    en.wikipedia.org/wiki/List_of_airline_codes

    This is a list of all airline codes. The table lists the IATA airline designators, the ICAO airline designators and the airline call signs (telephony designator). Historical assignments are also included for completeness.

  4. List of most expensive paintings - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive...

    List of most expensive paintings. Salvator Mundi by Italian artist Leonardo da Vinci ( c. 1500) This is a list of the highest known prices paid for paintings. The record is approximately US$ 450.3 million (which includes commission ), paid for Leonardo da Vinci 's Salvator Mundi ( c. 1500 ). The painting was sold in November 2017, [ 1][ 2 ...

  5. Big Pharma: The government revealed its list of negotiated ...

    www.aol.com/finance/big-pharma-government...

    The Centers for Medicare and Medicaid Services (CMS) released its first-ever negotiated drug price list Thursday morning to a muted response on Wall Street. But industry and government officials ...

  6. List of national parks of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_national_parks_of...

    The largest national park is Wrangell–St. Elias in Alaska: at over 8 million acres (32,375 km 2 ), it is larger than each of the nine smallest states. The next three largest parks are also in Alaska. The smallest park is Gateway Arch National Park, Missouri, at 192.83 acres (0.7804 km 2 ).

  7. List of benzodiazepines - Wikipedia

    en.wikipedia.org/wiki/List_of_benzodiazepines

    The tables below contain a sample list of benzodiazepines and benzodiazepine analogs that are commonly prescribed, with their basic pharmacological characteristics, such as half-life and equivalent doses to other benzodiazepines, also listed, along with their trade names and primary uses. The elimination half-life is how long it takes for half ...

  8. List of Mersenne primes and perfect numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_Mersenne_primes...

    For example, 3 is a Mersenne prime as it is a prime number and is expressible as 22 − 1. [ 1][ 2] The numbers p corresponding to Mersenne primes must themselves be prime, although not all primes p lead to Mersenne primes—for example, 211 − 1 = 2047 = 23 × 89. [ 3] Meanwhile, perfect numbers are natural numbers that equal the sum of their ...

  9. Millennium Prize Problems - Wikipedia

    en.wikipedia.org/wiki/Millennium_Prize_Problems

    e. The Millennium Prize Problems are seven well-known complex mathematical problems selected by the Clay Mathematics Institute in 2000. The Clay Institute has pledged a US$ 1 million prize for the first correct solution to each problem. The Clay Mathematics Institute officially designated the title Millennium Problem for the seven unsolved ...