The Ashoka Pillar is a series of columns dispersed throughout the Indian subcontinent, built during the reign of Emperor Ashoka in the 3rd century BCE. These pillars are made of sandstone and are known for their intricate carvings and inscriptions, which often promote the principles of Buddhism and moral governance. Each pillar typically features a capital with a sculpture of an animal, such as the famous Lion Capital of Ashoka, which is now the national emblem of India. The pillars served as important markers of Ashoka's efforts to spread peace and dharma, reflecting his commitment to non-violence and ethical rule.