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  2. Lebombo bone - Wikipedia

    en.wikipedia.org/wiki/Lebombo_bone

    The bone is between 43,000 and 42,000 years old, according to 24 radiocarbon datings. [2] This is far older than the Ishango bone with which it is sometimes confused. Other notched bones are 80,000 years old but it is unclear if the notches are merely decorative or if they bear a functional meaning. [3] The bone has been conjectured to be a ...

  3. Ishango bone - Wikipedia

    en.wikipedia.org/wiki/Ishango_bone

    The Ishango bone on exhibition at the Royal Belgian Institute of Natural Sciences. The Ishango bone, discovered at the "Fisherman Settlement" of Ishango in the Democratic Republic of the Congo, is a bone tool and possible mathematical device that dates to the Upper Paleolithic era. [1]

  4. History of ancient numeral systems - Wikipedia

    en.wikipedia.org/wiki/History_of_ancient_numeral...

    The bone has been dated to 42,000 years ago. [12] According to The Universal Book of Mathematics,: p. 184 the Lebombo bone's 29 notches suggest that "it may have been used as a lunar phase counter, in which case African women may have been the first mathematicians, because keeping track of menstrual cycles requires a lunar calendar."

  5. Tally marks - Wikipedia

    en.wikipedia.org/wiki/Tally_marks

    Dated to the Aurignacian, approximately 30,000 years ago, the bone is marked with 55 marks which may be tally marks. The head of an ivory Venus figurine was excavated close to the bone. [1] The Ishango bone, found in the Ishango region of the present-day Democratic Republic of Congo, is dated to over 20,000 years old

  6. History of science and technology in Africa - Wikipedia

    en.wikipedia.org/wiki/History_of_science_and...

    The Lebombo bone from the mountains between Swaziland and South Africa may be the oldest known mathematical artifact. [38] It dates from 35,000 BCE and consists of 29 distinct notches that were deliberately cut into a baboon's fibula. [39] [40]

  7. The Story of 1 - Wikipedia

    en.wikipedia.org/wiki/The_Story_of_1

    Terry Jones first journeys to Africa, where bones have been discovered with notches in them. However, there is no way of knowing if they were used for counting.. Jones then discusses the Ishango bone, which must have been used for counting, because there are 60 scratches on each side of the bone.

  8. Jean de Heinzelin de Braucourt - Wikipedia

    en.wikipedia.org/wiki/Jean_de_Heinzelin_de_Braucourt

    He gained international fame in 1950 when he discovered the Ishango Bone [1] "Jean de Heinzelin was a geologist. A kind of a modern adventurer, Jean de Heinzelin was a field worker and a remarkable observer. Africa was his main area of work, but he also took part in various expeditions in Europe, the United States and the Middle East.

  9. Prehistoric Africa - Wikipedia

    en.wikipedia.org/wiki/Prehistoric_Africa

    The earliest physical evidence of astronomical activity may be a lunar calendar found on the Ishango bone dated to between 23,000 and 18,000 BC from in what is now the Democratic Republic of the Congo. [51] However, this interpretation of the object's purpose is disputed. [52]