What caused Asokas edicts to become a foucus of study in the past 150 years?

Asoka's edicts became a focus of study in the past 150 years due to their significant historical, cultural, and ethical insights into ancient India and Buddhism. Scholars and historians recognized these edicts as valuable primary sources that reflect Asoka's policies, governance, and commitment to non-violence and social welfare. Additionally, the rediscovery of these inscriptions in the 19th century spurred interest in understanding their linguistic, historical, and philosophical implications, leading to a broader exploration of Asoka's impact on Indian civilization and beyond.