Queen Sondok was a prominent ruler of the ancient Korean kingdom of Silla, reigning from 632 to 647 AD. She is notable for being the first female monarch in Korean history and played a crucial role in the unification of the Korean Peninsula. Her reign is marked by significant advancements in culture, science, and architecture. Under Queen Sondok's leadership, Silla developed strong diplomatic ties with neighboring kingdoms, particularly Tang China. She is also credited with the construction of the famous Cheomseongdae, an astronomical observatory, which reflects her interest in science and technology. Her legacy continues to influence Korean history and culture.