HISTORY OF DEV

July 9, 2001

Miguel de Icaza announces Mono

Ximian unveiled the MonoAn open-source implementation of .NET — ran C# on Linux and macOS before .NET Core. Project on July 9, 2001 — Miguel de Icaza's open-source .NET implementation, with details presented at O'Reilly OSCON later that month.

What it was for

MonoAn open-source implementation of .NET — ran C# on Linux and macOS before .NET Core. enabled Xamarin mobile development and Unity's C# scripting on macOSApple's desktop operating system — runs on Mac hardware with Unix foundations and the Cocoa UI framework. and Linux. de Icaza also co-founded GNOME and Ximian — shaping open desktop and cross-platform .NET.

People

  • Miguel de Icaza — creator

Companies

  • Microsoft

Why it's here

MonoAn open-source implementation of .NET — ran C# on Linux and macOS before .NET Core. made MicrosoftThe software giant behind Windows, Office, Azure, and Xbox — founded by Bill Gates and Paul Allen.'s managed runtime portable before .NET Core existed.

Why it mattered

It kept C# viable for cross-platform mobile and game development.

What it solved

.NET was Windows-only, blocking open-source and mobile adoption.

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