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Tuesday, 31 January 2023, 05:12 (05:12 AM) CST, day 031 of 2023

Prehistoric Cultures

Fall 2012 Calendar -- DAY  [archive]

Fall 2012 Calendar  -- EVENING [archive]

Dates and Times to Remember 

class slides on-line 

Tuesday, 31 January 2023, 11:12 (11:12 AM) GMT, day 031 of 2023
. . . in History 
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Conceptual Changes
Between the Eighteenth
and Twentieth Centuries

slides

  1. Units

    • Before 1859: Types -- original, static, and immutable

    • After 1859: Breeding populations -- variable and changing

     

  2. Variation

    • Before 1859: Deviations from type -- accidental, anomalous, or pathological

    • After 1859: Genetic variation is basis for change and adaptation by natural selection (differential reproduction)

     

  3. Inheritance

    • Before 1859: Blending inheritance

    • After 1859: Particulate inheritance (after Mendelian genetics)

     

  4. Relationship of Units

    • Before 1859: Types arrayed hierarchically on a unilinear scale of perfection, that is, as a "Great Chain of Being," or a "Ladder of Perfection" (Scala naturae)

    • After 1859: Variable populations, diverging multi-dimensionally

     

  5. Time Depth

    • Before 1859: Recent creation of world (on 23 October, 4004 B.C.)

    • After 1859: Geological eras in millions of years

Source: TBA


History of Thought: "The Search for Human Origins"

Major Characteristics of Modern Physical Anthropology


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