The Ways of The Old World

Calanthi was founded by noblemen that had their roots and their power established in The Old World on the south shore of The Great Sea where trade ships sailed east to west carrying valuable cargos and passengers freely.  The nobles of Calanthi naturally emulated the political structures from the Old World when setting up the new nation.
Several social structures were just assumed to be "Right" as they tamed the wilderness and began to establish their own new nation and culture.  The feudal system with the King at the top, followed by Dukes, Marquis, Counts and Barons was one of the first systems reborn in Calanthi.  The second was the close relationship with The Church of The One True God, (more commonly called The Church of The One, or The Church) that was essentially a branch of the government.  Church leaders were even given noble titles as the tradition practiced in The Old World for an hundred generations.
The tradition of the most able farmers being given authority over additional farmland that was farmed by their selected hands (assistant farmers) was also copied.  And also the rents and duties due to the Manor Lords that granted the Franklins (top tier farmers) their lands were a requisite "tradition".  Other social traditions such as the Planting Festival and the Harvest Festival and the Winter Solstice were carried over from The Old World.
But Calanthi developed some new traditions including The Forest Gathering.  This tradition comes from the Druids that were found to be essential to the healthy harvests in Calanthi.  Unlike The Old World, because the King had a blank slate to work with as he established Calanthi, he engaged a handful of druids to perform their magic over the farmland.  This ritual made the farmland, even as ideal as it was, vastly more productive.  In exchange, the local nobles would grant some forest land to the druids to allow private ceremonies and rituals.  The Druids understood how to properly care for the forest land and found a way to advance their interest with that of the nearest village.  The Druids would call for a day to open their forest and let the common folk gather all the dead wood they could carry back to their homes.  Removing the dead wood in this way helped keep the forest healthy.  There were always enough leaves and other decaying matter to rejuvenate the soil in the forest, so the clearing of the sticks and branches gave the commoners a supply of firewood for their homes.  The Druids could declare as many of these days as they wished during the summer or winter months, but understood that during planting and harvesting they should consult with the local Lord.  But this didn't prevent the Druids from gathering wood and bringing it to the village.  The benefit of the druids helping the community became a special part of the social fabric in Calanthi, enough to attract the attention of The Church.
Although some may not call this a tradition, it was an integral part of the social fabric of Calanthi.  Halflings were known to be exceptional farmers and highly agreeable folks overall.  They were not known to have any nation anywhere.  Some even believed they just grew from the fertile soil.  But in Calanthi, halflings were sought after by the nobility for their ability as farmers.  Everything in the economy depended on the harvest.  Halflings being exceptional in this way were offered to establish their own hamlet in each barony.  The Baron would grant them a degree of autonomy and the halflings would set to work doing what they did best.  This bolstered the total harvest for each barony that could boast of a halfling village and the halflings were given the peace and security to pursue a life just as they would.
In addition to agriculture, a significant number of folks in Calanthi were sheep herders.  This gave the community milk, cheese, meat and wool.  Neither the milk or cheese were in any great quantity, but the additional variety in the diet was a good more welcome than the quantity might indicate.  The sheep herders had a shearing every year with its own festival and celebration.  After the shepherds, the woodsmen might be the next largest industry in terms of manpower requirements.  Woodsmen hunted and harvested trees within strict limits established by the nobility.  It is known that the wisest nobles conferred with the druids on these questions, but some game was taken each year for the commoners and their festivals, and some timber was needed to maintain and build structures to keep up with demands.  Every branch was captured and collected for firewood if it couldn't be used for something more permanent.
Calanthi had a number of other customs and institutions that might not be considered "traditions", but they are also a big part of the social fabric.  While Calanthi was born from The Old World, no sensible commoner would say they wished for the stability of The Old World over the sense of contentment they enjoyed in Calanthi.