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  2. Slavery in ancient Rome - Wikipedia

    en.wikipedia.org/wiki/Slavery_in_ancient_Rome

    Columella decries the extravagance of culinary workshops that produce chefs and professional servers when schools for agriculture don't exist. [425] Seneca mentions the specialized training required for poultry-carving, and the habitually indignant Juvenal rails about a carver (cultellus) who rehearses dance-like moves and knife-wielding to ...

  3. Carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide

    The concentration of carbon dioxide (CO 2) in the atmosphere reached 427 ppm (0.0427%) on a molar basis in 2024, representing 3341 gigatonnes of CO 2. [78] This is an increase of 50% since the start of the Industrial Revolution, up from 280 ppm during the 10,000 years prior to the mid-18th century. [79] [80] [81] The increase is due to human ...