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  2. Tally marks - Wikipedia

    en.wikipedia.org/wiki/Prehistoric_counting

    The so-called Wolf bone is a prehistoric artifact discovered in 1937 in Czechoslovakia during excavations at Dolní VÄ›stonice, Moravia, led by Karl Absolon. Dated to the Aurignacian , approximately 30,000 years ago, the bone is marked with 55 marks which may be tally marks.

  3. History of ancient numeral systems - Wikipedia

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

    Number systems have progressed from the use of fingers and tally marks, perhaps more than 40,000 years ago, to the use of sets of glyphs able to represent any conceivable number efficiently. The earliest known unambiguous notations for numbers emerged in Mesopotamia about 5000 or 6000 years ago.

  4. Timeline of numerals and arithmetic - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_numerals_and...

    c. 20,000 BC — Nile Valley, Ishango Bone: suggested, though disputed, as the earliest reference to prime numbers as also a common number. [1] c. 3400 BC — the Sumerians invent the first so-known numeral system, [dubious – discuss] and a system of weights and measures.

  5. List of first human settlements - Wikipedia

    en.wikipedia.org/wiki/List_of_first_human...

    This is a list of dates associated with the prehistoric peopling of the world (first known presence of Homo sapiens). The list is divided into four categories, Middle Paleolithic (before 50,000 years ago), Upper Paleolithic (50,000 to 12,500 years ago), Holocene (12,500 to 500 years ago) and Modern ( Age of Sail and modern exploration).

  6. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    A form of unary notation called Church encoding is used to represent numbers within lambda calculus. Some email spam filters tag messages with a number of asterisks in an e-mail header such as X-Spam-Bar or X-SPAM-LEVEL. The larger the number, the more likely the email is considered spam. 10: Bijective base-10: To avoid zero: 26: Bijective base-26

  7. Timeline of North American prehistory - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_North_American...

    1000 BC–800 AD: The Norton tradition develops in the Western Arctic along the Alaskan shore of the Bering Strait.; 1000 BC: Athapaskan-speaking natives arrive in Alaska and northwestern North America, possibly from Siberia.

  8. A Piece of Evidence May Explain Why the Woolly Mammoth ...

    www.aol.com/piece-evidence-may-explain-why...

    12,800 years ago, the woolly mammoth suddenly disappeared. A new piece evidence may finally explain why.

  9. Prehistoric demography - Wikipedia

    en.wikipedia.org/wiki/Prehistoric_demography

    Prehistoric demography, palaeodemography or archaeological demography is the study of human and hominid demography in prehistory. [ 1 ] More specifically, palaeodemography looks at the changes in pre-modern populations in order to determine something about the influences on the lifespan and health of earlier peoples.