The Lebombo Bone: Ancient Counting System
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Questions and Answers

Where was the Lebombo Bone discovered?

  • South Africa
  • Egypt
  • Lebombo Mountains of Swaziland (correct)
  • Democratic Republic of Congo
  • What is the estimated age of the Lebombo Bone?

  • 35,000-40,000 years old (correct)
  • 50,000-60,000 years old
  • 20,000-25,000 years old
  • 10,000-15,000 years old
  • What is the main feature of the markings on the Lebombo Bone?

  • They are random and disorganized
  • They are organized into a sequence, suggesting a counting system (correct)
  • They are all single marks with no patterns
  • They are only found on one side of the bone
  • What is the material used to make the Ishango Bone?

    <p>Fossilized crocodile bone</p> Signup and view all the answers

    What is a possible use of the Ishango Bone?

    <p>Tracking of lunar cycles</p> Signup and view all the answers

    What is a significant feature of the markings on the Ishango Bone?

    <p>They include arithmetical patterns, such as 10+1, 20+1, 30+1, etc.</p> Signup and view all the answers

    Study Notes

    Lebombo Bone

    • Discovered in 1970 in the Lebombo Mountains of Swaziland
    • Dating: circa 35,000-40,000 years old
    • Made from a fossilized animal bone (likely an antelope)
    • Features:
      • 29 distinctive markings, including 13 pairs of marks and 16 single marks
      • Markings are organized into a sequence, suggesting a counting system
      • Some marks are grouped together, possibly indicating a base-10 system
    • Interpretation:
      • Possibly used for counting or tracking purposes
      • May be an early example of a primitive calculator
      • Shows evidence of mathematical thinking in early humans

    Ishango Bone

    • Discovered in 1960 in the Democratic Republic of Congo
    • Dating: circa 18,000-20,000 years old
    • Made from a fossilized bone of a Nile crocodile
    • Features:
      • Series of markings, including:
        • 168 markings on one side, grouped into 16 rows
        • 48 markings on the other side, grouped into 8 rows
      • Markings include:
        • Tally marks ( single strokes)
        • Groups of 2-6 marks, possibly indicating multiplication
        • Arithmetical patterns, such as 10+1, 20+1, 30+1, etc.
    • Interpretation:
      • Possibly used for mathematical calculations, such as counting, addition, and multiplication
      • May have been used for astronomical observations or tracking of lunar cycles
      • Shows evidence of advanced mathematical thinking in early humans
      • Considered one of the oldest known examples of a mathematical tool

    Lebombo Bone

    • A 35,000-40,000-year-old fossilized animal bone, likely from an antelope, discovered in the Lebombo Mountains of Swaziland in 1970
    • Features 29 distinctive markings, comprising 13 pairs and 16 single marks, organized into a sequence, suggesting a counting system
    • Some marks are grouped together, possibly indicating a base-10 system
    • May have been used for counting or tracking purposes, and is considered an early example of a primitive calculator
    • Demonstrates evidence of mathematical thinking in early humans

    Ishango Bone

    • An 18,000-20,000-year-old fossilized Nile crocodile bone, discovered in the Democratic Republic of Congo in 1960
    • Features a series of markings on both sides, including:
      • 168 markings on one side, grouped into 16 rows
      • 48 markings on the other side, grouped into 8 rows
    • Markings include tally marks, groups of 2-6 marks possibly indicating multiplication, and arithmetical patterns such as 10+1, 20+1, 30+1, etc.
    • May have been used for mathematical calculations, such as counting, addition, and multiplication
    • Possibly used for astronomical observations or tracking of lunar cycles
    • Considered one of the oldest known examples of a mathematical tool, demonstrating advanced mathematical thinking in early humans

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    Explore the Lebombo Bone, a 35,000-40,000 year old fossilized animal bone discovered in Swaziland, featuring 29 distinctive markings that suggest a counting system. Learn about its possible uses and significance.

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