Christian teaching. In 1677 a census of the country was taken. It was estimated that the population was 4,703,505. This is almost as many as the recent census report gives, which is manifestly absurd. Even at that early time the estimate was doubtless far below the truth, and the discrepancy has widened rather than narrowed during the interval. Party strife continued, and the annals are full of the ups and downs of these selfish and suicidal factions. Native records say that it was in 1686 that foreigners first entered Korea to preach the doctrines of Christianity. We are not told their nationality, but they were probably Chinese. Nothing is said of this in Ballet's great work on the history of Roman Catholicism in Korea, and it is rather difficult to understand. It would hardly be found in the records, however, unless there was some slight ground for it. We are told that the doctrine made good progress at that time, but that some of the highest officials asked the King to send the foreigners out of the country.
The eighteenth century opened with the strife of parties at white heat, but there were bright spots in the picture. The great mountain fortress back of Seoul, called Pukhan, was completed in 1717, and the same King who put through this stupendous piece of work also made himself a wellnigh unique figure in history by prohibiting, under the severest penalties, the manufacture or sale of intoxicating beverages of any kind. For years the drinking of such liquors was practically unknown. It is said that special police were stationed outside the gates, whose duty it was to smell the breath of every passer-by. No sinecure this! The governor of one of the northern provinces was executed because he failed to observe the letter of this law.
With the year 1730 there began an era of grand reform in Korea. It bade fair to bring the land back to the standard set by the first kings of the dynasty. A mere list of the reforms instituted at that time will give us a glimpse at the condition of the people. The grandsons of all female slaves were declared free; irrigation reservoirs were built; a new model of the solar
