When did the 7-digit sports lottery begin?

On June 3rd, 1998, Jiangsu officially became the first computer lottery pilot province in China. The traditional sports lottery 6+ 1 game began to be sold at 300 outlets in six cities in Jiangsu at the same time, which is also the predecessor of the 7-digit game that has been popular for more than ten years.

Note: In 2000, this game was changed to seven-star color in most provinces. At present, Jiangsu sells seven figures in the province, not seven stars in the national network.