Shieldmeet was the equivalent of a leap year day in the Calendar of Harptos, occurring once every four years, taking place on Flamerule 31. Traditionally the day was used for fairs, bazaars, musical and theatrical performances, and tournaments of skill and magical ability. Nobles usually held court to hear the petitions of their people and to make or renew trade pacts, alliances, and agreements.
Shieldmeet was known as Cinnaelos'Cor (also seen as Cinnaeloscor), "the Day of Corellon's Peace" in elvish and marked the end of an aeloulaev and the beginning of a new one in the elven Aryselmalyn calendar.
Shieldmeet Years
There were Shieldmeets every four years.Since 1372 DR contained a Shieldmeet, this meant that 0 DR and every fourth year prior or afterward also contained a Shieldmeet.
Variations
Across Faerûn the Shieldmeet celebrations varied greatly, from calm and reflective to extravagant and outrageous.
Shieldmeet Ball:
Every Shieldmeet, the Open Lord throws a grand ball for Waterdeep, with the interiors of the Palace laid open for nobles and the wealthy, and a grand festival air in the courtyard in front of the palace. Room within is limited, and the guests within are always influential and important, so the jockeying to achieve a place within is intense.
Ceremony of Honor to Helm:
A high holy ritual thanking Unknown for his unceasing vigilance.