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  2. Human penis size - Wikipedia

    en.wikipedia.org/wiki/Human_penis_size

    The average stretched penile length at birth is about 4 cm (1.6 in), and the length for 90% of newborn boys is between 2.4 and 5.5 cm (0.94 and 2.17 in). Limited growth of the penis occurs between birth and 5 years of age, but very little occurs between 5 years and the onset of puberty.

  3. Tanner scale - Wikipedia

    en.wikipedia.org/wiki/Tanner_scale

    Purpose. Defines physical measurements of development. The Tanner scale (also known as the Tanner stages or sexual maturity rating (SMR)) is a scale of physical development as pre-pubescent children transition into adolescence, and then adulthood. The scale defines physical measurements of development based on external primary and secondary sex ...

  4. Visual acuity - Wikipedia

    en.wikipedia.org/wiki/Visual_acuity

    For 6/6 = 1.0 acuity, the size of a letter on the Snellen chart or Landolt C chart is a visual angle of 5 arc minutes (1 arc min = 1/60 of a degree), which is a 43 point font at 20 feet. [10] By the design of a typical optotype (like a Snellen E or a Landolt C), the critical gap that needs to be resolved is 1/5 this value, i.e., 1 arc min.

  5. List of United States presidential elections by popular vote ...

    en.wikipedia.org/wiki/List_of_United_States...

    The table below is a list of United States presidential elections by popular vote margin. It is sorted to display elections by their presidential term / year of election, name, margin by percentage in popular vote, popular vote, margin in popular vote by number, and the runner up in the Electoral College.

  6. List of Billboard Year-End number-one singles and albums

    en.wikipedia.org/wiki/List_of_Billboard_Year-End...

    The Billboard Year-End chart is a chart published by Billboard which denotes the top song of each year as determined by the publication's charts. Since 1946, Year-End charts have existed for the top songs in pop, R&B, and country, with additional album charts for each genre debuting in 1956, 1966, and 1965, respectively.

  7. Lists of Billboard number-one singles - Wikipedia

    en.wikipedia.org/wiki/Lists_of_Billboard_number...

    This is a list of songs that have peaked at number one on the Billboard Hot 100 and the magazine's national singles charts that preceded it. Introduced in 1958, the Hot 100 is the pre-eminent singles chart in the United States, currently monitoring the most popular singles in terms of popular radio play, single purchases and online streaming.

  8. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    Below is the grading system found to be most commonly used in United States public high schools, according to the 2009 High School Transcript Study. [2] This is the most used grading system; however, there are some schools that use an edited version of the college system, which means 89.5 or above becomes an A average, 79.5 becomes a B, and so on.

  9. List of Billboard Hot 100 chart achievements and milestones ...

    en.wikipedia.org/wiki/List_of_Billboard_Hot_100...

    Hot 100 chart achievements and milestones. The Billboard Hot 100 is a singles chart published by Billboard that measures the most popular singles in the United States, based on sales (physical and digital), online streaming, and radio airplay. Throughout the history of the Hot 100 and its predecessor charts, many songs have set records for ...