
1) Ancient Roman festival
Found on
https://www.crosswordclues.com/clue/robigalia

In ancient Roman religion, the Robigalia was a festival held April 25. Its main ritual was a dog sacrifice to protect grain fields from disease. Games (ludi) in the form of `major and minor` races were held. The Robigalia was one of several agricultural festivals in April to celebrate and vitalize the growing season, but the darker sacrificial e.....
Found on
http://en.wikipedia.org/wiki/Robigalia

(from the article `Rogation Days`) ...25 and the Minor Rogations (Minor Litany) on the three days before Ascension Day (40th day after Easter). The Major Rogation originated as a ...
Found on
http://www.britannica.com/eb/a-z/r/57
No exact match found.