1969 - The first ARPANET link is established.

1969年的今天，首个ARPANET链接建立。

背景资料：

The Advanced Research Projects Agency Network (ARPANET) developed by ARPA of the United States Department of Defense was the world's first operational packet switching network, and the progenitor of the global Internet.

ARPA网（ARPANET，The Advanced Research Projects Agency Network）是由美国国防部的ARPA开发的世界上第一个运营的包交换网络，它是全球互联网的始祖。