Room expedition
Room expedition (房 元 井, 1593 ~ 1652) is a tattoo and scholar of Joseon. The main building is Nanyang, sleeping, yi, and hi is the temple. In 1618 (10th year of Gwanghae-gun), he passed Jinsa City and stayed in Sungkyunkwan Strait. In 1636 (the 14th year of mankind), he caused a sickness with his sisters and sisters, and defeated the enemy in Cheongju and Gwacheon. In 1641 (19th year of the 19th century), he went to Jeon-gang (殿 講) along with Kang Ho-ki and went to a direct meeting. In 1646 (the 24th year of Buddhism), it was imposed on the Buddhist temple and became the Buddhist temple on June 21 of the same year. He has deep insight into various aspects such as fresh sake, testament, method of law, foreign policy, harsh remedy, and market policy, and has developed a well-organized argument through his book " Among them, in "Qunyun City Shi", he argued that the key issue is whether or not the customs are aimed at temperance or luxury.