History from the side of those it happened to
Mathematics
| Year | Country | Category | title |
|---|---|---|---|
| 10 January 2008 | Peru | Mathematics | Study analyzes a calendar quipu |
| 10 January 2008 | Peru | Mathematics | Quipu is interpreted as structured information |
| 10 January 2008 | Peru | Mathematics | The research compares quipu data with Cusco's sky |
| 10 January 2008 | Peru | Mathematics | Andean mathematics is treated as more than written numerals |