Ameliorator's Day is observed in Azerbaijan on June 5. Established by Presidential Decree on May 24, 2007, this professional holiday honors specialists in land reclamation, who are recognized for their vital contributions to agriculture in Azerbaijan's dry climate. The significance of land reclamation in the country is underscored by its historical roots, with the earliest melioration systems dating back to ancient times, and large-scale efforts emerging by the 7th century. Modern melioration systems began to develop in the early 20th century. The Azerbaijani government actively supports land reclamation and water resource management, channeling foreign investments into regional development programs. On this day, professionals in the field receive congratulations and gratitude for their essential work.