Naris Will

The will of Naris is seen as responsible for creating the large amount of public orchards spread across the Empire of Dercia. 
Naris had in his life been one of the wealthiest men in Pearlhal by his death, he owned 120 estates across the empire, countless vineyards, a handful of merchant ships, and enough farmlands to feed four legions. Despite the vast amount of wealth, he had no surviving children or grandchildren, and not wanting to let his vast fortune just become part of the state treasury, he wrote a will that said that upon his death, his fortune was to be used to create orchards across the empire, free for everyone to harvest the fruits from.
Over the next fifty years, as his will was carried out, his fortune funded thousands of orchards in places where travelers, pilgrims, or the poor could have use of them. The buildings he owned would pass to any village, town, or city that would maintain a public orchard for at least 30 years.
As with so many things, Naris Will created some amount of confusion, like how many trees counted as an orchard, which particular fruit, and whether replacing trees that got sick or died reset the 30-year count.
Over the years, the different villages, towns, and cities planted trees to qualify to get a part of the inheritance; some planted only 10 trees and said that was good enough; some planted hundreds; roads became lined with apples, pears, figs, olive, and Brumal Apple in the places that allowed these to grow.
Children was paid to water the saplins and look after the trees, military veterans constructed low stonewalls around the orchards to keep out the worst of the wildlife, in the years while the trees grew, nobody cared much about the trees but once they began bearing fruit, they found out how useful it was to have them as more than once, the free acess to fruit and similar, prevented famines for long enough to other food to be brought in.
The will of Naris created a new legal concept: property held for the benefit of the public across generations, rather than by an individual family.