The concept of systems engineering is perhaps a bit older than most people would expect. In fact, the term dates back to the early 1940s when it was originally used by Bell Telephone Laboratories to describe major systems used during World War II.
Of course, today, the field of systems engineering has been divided up to include multiple disciplines within the larger bucket, including industrial engineering, software engineering, reliability engineering, cognitive systems engineering, security engineering, and so many others.
International Systems Engineer Day was founded in 2012 by Nicholas Fourie of South Africa and his colleagues in systems engineering. The day was established as a way to acknowledge and show appreciation for the hundreds of thousands of men and women who work hard every day at their computers to make the whole world a better place!