When did star-rated hotels become popular?

Internationally, star hotels have been around since 1930;

In China, they began to rise in the late 1980s and early 1990s. At that time, ordinary people could not afford them. For example, Kunlun and Wangfujing hotels; with the improvement of living standards, the price of five-star hotels is not very high now, 500-1000/night is very common.