The Latest News & Views from Rose Calendars

Interesting information and news about relevant dates and events, with facts relating to topical or seasonal themes. We explore the sources of historic events, festivals and celebrations from around the world and look at why these take place and where they originate.


The Ancient Solar Calendar at Chankillo

Chankillo, built 2,300 years ago, in northern Peru is an extraordinary observatory also used as a solar calendar.  Built on a ridge in the Casma Valley at Chankillo, a structure of 13 towers, the observatory allowed remarkably accurate astronomical observations by people with an exceptionally sophisticated understanding of astronomy and the rising and setting arcs of the sun.