Researchers identified about 5,000 holes across Peru's Monte Sierpe ('Serpent Mountain') and found evidence suggesting the pits once held baskets of goods and may have been linked to the knotted-string accounting system known as khipus.
Sources
- 6 archaeological discoveries that amazed the world in 2025 (nationalgeographic.com)
- https://www.sydney.edu.au/news-opinion/news/2025/11/10/mysterious-holes-in-the-andes-may-have-been-an-ancient-marketplace-new-research-suggests.html (sydney.edu.au)
- https://www.cnn.com/2025/11/21/science/peru-band-of-holes-mystery (cnn.com)
- https://theconversation.com/a-centuries-old-grid-of-holes-in-the-andes-may-have-been-a-spreadsheet-for-accounting-and-exchange-269277 (theconversation.com)
- https://www.sciencenews.org/article/peru-serpent-mountain-mystery-inca (sciencenews.org)
More in History
- In the syncopated stage of mathematical notation, quantities and common algebraic operations began to be represented by symbolic abbreviations.
- Senate Republicans restricted the filibuster for Supreme Court nominees in 2017.
- On 31 October 1965, a Beat demonstration took place in Leipzig, organized after two youths secretly printed and distributed flyers calling for it.
- Under 49 U.S.C. § 114, the Under Secretary of Transportation for Security was appointed by the President with the advice and consent of the Senate, with a term of office of 5 years.
- Iraq's National Museum held approximately 170,000 objects, many of which curators moved to basement storerooms and vaults in March 2003 out of fear of Coalition bombing damage.
- When Frank Wisner retired in 1958, Allen Dulles chose covert-operations advocate Richard Bissell as his successor over espionage specialist Richard Helms, telling Helms that espionage seemed less important in Washington because it was 'relatively cheap.'