Slogans are an important product of history that can read the trends of the times and changes in issues. This study attempted to look beyond the subject of analysis from a literal linguistic perspective and to connect the social situation with the background of the time when the slogan phrase existed. Unlike previous studies, this study attempted a comprehensive analysis of slogan data, through BCC. The survey category was limited to 1949-2015, and after dividing it into 10-year units, the period when the peak of the slogan appearance rate was separately classified by period. Keywords (words) were extracted from the slogans that appeared in each period, and their history was examined by relating them to the background and events of the times. The rate of appearance of slogans gradually increased from the late 1950s, and in particular, in the 1960s, slogans appeared at a higher rate than any other period. After that, the increase and decrease were repeated, but the 80s and 90s showed a relative stagnation period compared to the previous period. In addition, amplifiers appeared once or twice in the early 2000s, but they were smaller than before. As a result of examining the trend of keywords (words) in the slogan phrase, political slogans tended to become mainstream in the beginning and gradually change into slogans advocating social and economic development, and major policies, events, and people were mentioned repeatedly at each time. Another interesting point was the relationship with neighboring countries that were friendly or hostile by era through the slogan.