The Ishango bone is the oldest known object containing logical carvings. It was discovered in the Congo, and has been dated to be A100000 ).
The artifact is preserved at the Royal Belgian Institute of Natural Sciences in Brussels
(Royal Belgian Institute of Natural Sciences 2018).
See also Lebombo Bone
Explore with Wolfram|Alpha
References africanMathematics. "An Introduction to the Unit." http://everyschool.org/u/logan/culturalmath/afmathematicians.htm . Free
University of Brussels. "www.ishango.be." https://web.archive.org/web/20080505042418/http://www.ishango.be/ . Huylebrouck,
D. "About the Ishango Artifact." https://web.archive.org/web/20040813152402/http://etopia.sintlucas.be:80/~dhuylebrouck/Ishango_web/Ishango_web.htm . Joseph,
G. G. The
Crest of the Peacock: Non-European Roots of Mathematics. Pletser, V. and Huylebrouck, D. "The Ishango Artifact:
The Missing Base 12 Link." Proc. Katachi Univ. Symmetry Congress (KUS2) ,
Paper C11, Forma 14-4, Tsukuba Univ., Japan, pp. 339-346, 18 Nov. 1999. Royal
Belgian Institute of Natural Sciences. "Archaeological Objects." 2018.
https://ishango.naturalsciences.be/en/en-ishango-13.html . Sloane,
N. J. A. Sequence A100000 in "The
On-Line Encyclopedia of Integer Sequences." Zaslavsky, C. Africa
Counts. Referenced on Wolfram|Alpha Ishango
Bone
Cite this as:
Weisstein, Eric W. "Ishango Bone." From
MathWorld https://mathworld.wolfram.com/IshangoBone.html
Subject classifications
years old. The middle column of marks on the bone contains
the sequence of number 3, 6, 4, 8, 10, 5, 5, 7 (OEIS A100000).
The artifact is preserved at the Royal Belgian Institute of Natural Sciences in Brussels
(Royal Belgian Institute of Natural Sciences 2018).
