Dwarf
Languages. Common, Dwarvish, and Primordial are the languages taught in dwarf-dominant cultures.
Stonecunning. Whenever you make an Intelligence (History) check related to the origin of stonework, you are considered proficient in the History skill and add double your proficiency bonus to the check instead of your normal proficiency bonus.
Tool Proficiency. Dwarves are renowned crafters. You gain proficiency with one of the following artisan's tools: mason's tools, smith's tools, or tinker's tools.