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1997: The GNOME desktop starts. It, along with KDE, will become one of Linux's two most important desktops.
1998: Microsoft starts to target Linux. Eric S. Raymond, an early Linux and open-source leader, reveals the so-called Halloween Documents, which reveals that Microsoft takes Linux seriously as an enemy and starts to formulate its anti-open-source and Linux campaigns.
1999: Corel releases the first mainstream Linux desktop. While unsuccessful, it would set the path for other Linux desktop distributions, such as Ubuntu, to try to win the hearts and minds of non-technical desktop users.