32 years ago today, on December 15, 1993 (November 3, 1993 lunar calendar), China's first submarine optical cable. On December 15, 1993, China's first submarine optical cable - a 1,252-kilometer-long China-Japan submarine optical cable from Shanghai Nanhui to Miyazaki, Kyushu, Japan, was officially opened. The total communication capacity of this submarine optical cable system reached 7,560 communication circuits, which is equivalent to more than 15 times that of the Sino-Japanese submarine coaxial cable built in 1976. The opening of the Sino-Japanese submarine optical cable has increased China's international communication capacity by more than 80%. Comment: China has since entered the Internet