 About 14% of the total population are mainland Chinese, which refers to immigrants who followed the ROC relocation from mainland China to Taiwan in 1949; some were of other ethnicities.During Japanese rule (between 1895-1945), Japanese was the medium of instruction and could be fluently spoken by many of those educated during that period.Almost everyone in Taiwan born after the early 1950s can speak Standard Chinese, which has been the official language and the medium of instruction in schools for more than four decades.