On this day, 27 years ago, on March 25, 1998 (February 27, 1998, the chronograph clock of 2000 started on the Great Wall. On March 25, 1998, in order to welcome the arrival of the world festival in 2000, the People's Daily initiated the 2000 countdown clock jointly set up by the International Department of the People's Daily, the Badaling Great Wall Special Zone and the Chunlan Group was officially launched under the Badaling Great Wall in Beijing. Century Clock chose the world's advanced satellite automatic clock correction, with an error of no more than one second every 30,000 years. The silver-gray century clock is erected on a mountain rock pedestal inlaid with marble. The clock body is 4.5 meters wide, 5.8 meters high, and the clock body area is 26.1 square meters. The theme of this clock is "racing against time to build the motherland." This clock is completely developed and produced by my country itself. In order to welcome the new century, 12 countries in the world have set up countdown clocks in their homeland, such as the Greenwich Observatory in the United Kingdom and the Eiffel Tower in France, and these countdown clocks have become famous attractions.