ICQ era
In 1996, ICQ was released, which was the first instant messaging software. You can see who is online and receive messages in real-time. Even earlier than QQ, QQ copied ICQ.
AIM and MSN
The United States has AIM (AOL Instant Messenger), and Microsoft has MSN Messenger. At that time, everyone used different software and couldn't chat with each other. We need to install several chat apps.
QQ in China
In 1999, OICQ was released and later renamed QQ. It copied the interface of ICQ. Later on, it grew bigger and became the Tencent Empire. Now WeChat has taken over the shift.
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