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  2. 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]

  3. Tally stick - Wikipedia

    en.wikipedia.org/wiki/Tally_stick

    Tally sticks first appear as animal bones carved with notches during the Upper Palaeolithic; a notable example is the Ishango Bone. Historical reference is made by Pliny the Elder (AD 23–79) about the best wood to use for tallies, and by Marco Polo (1254–1324) who mentions the use of the tally in China.

  4. 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

  5. History of ancient numeral systems - Wikipedia

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

    The Ishango bone is an artifact with a sharp piece of quartz affixed to one end, perhaps for engraving. It has been dated to 25,000 years ago. [ 13 ] The artifact was first thought to be a tally stick , as it has a series of what has been interpreted as tally marks carved in three rows running the length of the tool.

  6. Ishango - Wikipedia

    en.wikipedia.org/wiki/Ishango

    Ishango is a sub-station of the Virunga National Park, covering more than 13% of the North-Kivu province with about 790,000 hectares of extended landscape. [2] Located at the mouth of Lake Edward, the Virunga National Park was established in 1925 in an effort to protect mountain gorilla species from threats of poaching and deforestation, making it the "oldest protected park in Africa". [2]

  7. Prehistoric Central Africa - Wikipedia

    en.wikipedia.org/wiki/Prehistoric_Central_Africa

    Between 25,000 BP and 20,000 BP, hunter-fisher-gatherer peoples in Central Africa (e.g., Ishango, Democratic Republic of Congo) used fishing tools and natural resources from nearby water sources, as well as may have engaged in and recorded mathematics (e.g., Ishango bone, which may demonstrate knowledge and use of the duodecimal system, prime ...

  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. The Story of 1 - Wikipedia

    en.wikipedia.org/wiki/The_Story_of_1

    Jones then discusses the Ishango bone, which must have been used for counting, because there are 60 scratches on each side of the bone. Jones declares this "the birth of one"; a defining moment in history of mathematics. He then journeys to Sumer. Shortly after farming had been invented and humans were starting to build houses, they started to ...