In the mid-1980s the banking system still lacked some of the services and characteristics that were considered basic in most countries. Interbank relations were very limited, and interbank borrowing and lending was virtually unknown. Checking accounts were used by very few individuals, and bank credit cards did not exist. In 1986 initial steps were taken in some of these areas. Interbank borrowing and lending networks were created among twenty-seven cities along the Yangtze River and among fourteen cities in north China. Interregional financial networks were created to link banks in eleven leading cities all over China, including Shenyang, Guangzhou, Wuhan, Chongqing, and Xi'an and also to link the branches of the Agricultural Bank. The first Chinese credit card, the Great Wall Card, was introduced in June 1986 to be used for foreign exchange transactions. Another financial innovation in 1986 was the opening of China's first stock exchanges since 1949. Small stock exchanges began operations somewhat tentatively in Shenyang, Liaoning Province, in August 1986 and in Shanghai in September 1986.