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The Finnish operator Radiolinja is launched as the world's first GSM network.
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Radiolinja
Finnish GSM operator
Radiolinja was a Finnish GSM operator founded on September 19, 1988. On March 27, 1991, the world's first GSM phone call was made on Radiolinja's network. The network was opened for commercial use on July 1, 1991.Source: Wikipedia (CC BY-SA)
GSM
Cellular telephone network standard since 1991
The Global System for Mobile Communications (GSM) is a family of standards to describe the protocols for second-generation (2G) digital cellular networks, as used by mobile devices such as mobile phones and mobile broadband modems. GSM is also a trade mark owned by the GSM…Source: Wikipedia (CC BY-SA)
July 1
Day of the year
July 1 is the 182nd day of the year in the Gregorian calendar; 183 days remain until the end of the year.Source: Wikipedia (CC BY-SA)