Holidays and Traditional Celebrations of Calradia

Just as the geographies, cultures, customs, nations, and religions of the continent of Calradia differ, so too are the ways that the many peoples celebrate different aspects of their world. Many are directly related to significant points in the history of their deities, or are representative of a deity themselves. However, there also many the focus on local natural phenomena (such as annually occurring luminescent arrivals of the winds of magic) or those that are based on local superstitions or heroes (such as to celebrate the birthday of a particularly influential individual who came from a specific township or city). Regardless, these events generally play a large role in the yearly activities of a settlement, and can even have powerful impacts on national economies and politics.
The articles available at the bottom of this page cover the most prominent of the national celebrations, but should not be considered a fully comprehensive list, as there exists a plethora of local small-scale holidays or traditional celebrations based on localized phenomena or heroes of traditional local folklore.
Despite the large array of different traditions, the different sub-cultures of the continent can provide a fairly effective way of organizing these kinds of events:

The Calradian Empire

The Calradian Empire, despite being currently divided among rival factions, still maintains a relatively homogenous culture. As such, many of the different holidays such as The Feast of St. Aethelstan, Saint Alesia's Day, and The Trials of Sigvard are conducted throughout the Empire despite the political divisions. These festivals have reduced in their opulence since the divide, but Imperial Citizens have shown significant obstinance in continuing to celebrate their traditions regardless of The War of the Three Emperors.

The Battanian Confederacy

The Battanians have a very different set of celebrations, due to their general disdain for the Imperials, and due to their different religious practices. Whereas the Imperials generally have traditional festivals focused around community and society-wide ideals, the Battanians are much more individually oriented, and focus more on natural phenomena and personal achievements for their kin. Traditions such as The Ceremony of the Lady of The Lake, and The Great Hunt are unique compared to any other nation in Calradia, and are generally shrouded in mystery to those who are considered outsiders. Many Imperial citizens and people of other nationalities than Battanian see what they know of these traditions as barbaric and backwards. The sole exception is the Vaegirs, who respect the focus on individual skill and strength, combined with revelry, that their traditions emphasize.

The Kingdom of the Swadians

The Swadians are a unique case with regards to celebrations, because of their stratified society. The Swadian nobility generally allow the populace to follow many of the same celebrations as the people within The Calradian Empire. For example, the serfs of the Swadians celebrate Saint Alesia's Day and The Trials of Sigvard just like the Imperials. In fact, many of the Swadian nobility enjoy the Trials, and have co-opted them to be a Swadian tradition, as it provides a chance for the Noble families to compete without open warfare (though the Swadians don't allow non-nobles to compete). The Swadian nobility still allows The Feast of St. Aethelstan to take place, but requires that the local lord takes one of the head seats at the head of the table, across from the seat for the lost brethren.
This is not to say that the Swadians don't have their own traditions, because they absolutely do. However, many are not true "celebrations", and are reserved only for the nobility, with two main exceptions: The War of the Roses, and Landing Day, both traditions meant both to celebrate and to prepare the nation for war, which is the Swadians' natural state.

Tsardom of the Vaegirs

Although the Vaegirs are follows of the Pantheon of the God of Order, they still retain many of the traditions brought with them from their ancestral origins in the far North. As such, many of their celebrations and festivals are combinations of the two, leading to combi-events that combine natural events with the Saints of Order. For example, The Festival of the Winds is the combination of a spectacular natural phenomenon, and ancient tradition, and a religious observance. 
Similarly, The Great Quest of Saint Valgamora is a chance for the people to escape to the wilderness, if not to pan and sift for gold and silver, then to get a break from their regular lives to rejoice with the bounty provided by the mountain ranges' seasonal rivers, attributed to the favour of Saint Valgamora. 

The Aserai Confederacy

The Aserai are a very religious people, but also highly familial connections and familial independence, and so view their celebrations traditions often reflect these family-centric ideals. As a desert nation, the Aserai know more keenly than most the without the support of your family, people you can trust with your life, that you can quickly find yourself at the bottom of society, begging for help from others who do have such support systems. To emphasize this, the Aserai celebrate The Trial of Saint Asera. However, the Aserai also celebrate a "hodge podge" of other traditional celebrations from other nations who follow the Saints of Order, such as The Feast of St. Aethelstan, and Saint Alesia's Day.

** A note to the reader** Most all of the traditional celebrations of Calradia are accompanied by off-shoot celebrations. For example, while the pilgrims on the The Trial of Saint Asera are away in the desert, it is not uncommon for those remaining back in the cities to also celebrate the holy occasion in their own way. People often look for any chance to rejoice, revel, and splurge on themselves and their loved ones. As a result, towns and cities during a traditional ritual will often be a hub of activity.

for adventurers, times of ritual and celebration can be a mixed-bag of results. Experiencing the traditions of the world can be thrilling, and the preparations or protection of them can provide good work; but they also tend to send local economies into turmoil. For example, getting a tavern room in a Vaegir city during The Festival of the Winds can be a challenging endeavour.