START A PETITION34,000,000 members: the world's largest community for good

Rare Incan 'Calculators' Found in Peru

Science & Tech  (tags: ancient, archaeology )

- 820 days ago -
Archaeologists working in Peru have discovered 25 well-preserved quipus, an ancient string-based device used to solve mathematical problems and to assist in record-keeping.

Select names from your address book   |   Help

We hate spam. We do not sell or share the email addresses you provide.


natasha salgado (716)
Monday June 30, 2014, 5:54 pm
Very cool--never seen 1 before-thanks Marty

Maria Teresa Schollhorn (42)
Tuesday July 1, 2014, 1:47 am
Really interesting. Thanks Marty!

Jonathan Harper (0)
Tuesday July 1, 2014, 4:43 am

Past Member (0)
Tuesday July 1, 2014, 6:06 am
Interesting, but also if they used a base-10 positional system, wonder why some had 12 (astronomically speaking 13 periods of 4 weeks makes more sense than 12 months)?

Panchali Yapa (26)
Tuesday July 1, 2014, 11:33 am
Thank you

Birgit W. (159)
Tuesday July 1, 2014, 6:03 pm

Nancy C. (807)
Tuesday July 1, 2014, 6:43 pm
Used for tax obligations. Lets send some to all those Citizens United defenders. They may be able to count properly with these. Anyway, thanx Marty. Another fascinating artifact.

Jav R. (0)
Tuesday July 1, 2014, 7:42 pm
Gracias por compartir. Muy intesante.

Nelson Baker (0)
Tuesday July 1, 2014, 7:56 pm
Noted. Interesting. Thank you.

Victoria Oakey (124)
Wednesday July 2, 2014, 12:56 am
Very interesting. Thank you for the information.

Alexandra G. (250)
Wednesday July 2, 2014, 6:20 am
Thanks Marty for very interesting article

Panchali Yapa (26)
Wednesday July 2, 2014, 10:58 am
Thank you

Terry H. (15)
Wednesday July 2, 2014, 3:10 pm
Thanks for posting Marty :)

Melania Padilla (197)
Thursday July 3, 2014, 4:09 pm
Interesting.... Weird... I donīt know! Thanks for posting

MmAway M. (487)
Monday July 14, 2014, 10:19 pm
Smart @!@!
Or, log in with your
Facebook account:
Please add your comment: (plain text only please. Allowable HTML: <a>)

Track Comments: Notify me with a personal message when other people comment on this story

Loading Noted By...Please Wait


Content and comments expressed here are the opinions of Care2 users and not necessarily that of or its affiliates.

New to Care2? Start Here.