"Last year, unconfirmed reports circulated that Microsoft was building a new language called "Cool" that would be similar to Java but free of technological or licensing obligations to Sun. Microsoft vehemently denied the rumors. Yesterday, Microsoft executives denied that C# was related to the rumored Cool project. "
From this story in June 2000.
And yet,
"The code name was Cool, which stood for âC like Object Oriented Languageâ(TM). We kind of liked that name: all of our files were called
.cool and that was kind of cool! We looked seriously at keeping the name for the final product but it was just not feasible from a trademark perspective, as there were way too many cool things out there."
From the article
...