C# (pronounced “C Sharp”) is one of many .NET programming languages. It is object-oriented and allows you to build reusable components for a wide variety of application types. Microsoft introduced C# on June 26th, 2000 and it became a v1.0 product on Feb 13th 2002.
C# is an evolution of the C and C++ family of languages. However, it borrows features from other programming languages, such as Delphi and Java. If you look at the most basic syntax of both C# and Java, the code looks very similar, but then again, the code looks a lot like C++ too, which is intentional. Developers often ask questions about why C# supports certain features or works in a certain way. The answer is often rooted in it's C++ heritage.