Today, open-source software is everywhere but many peple still think of it as being relatively new. It's not. Open-source software actually goes back decades.
Before beginning our journey in the way-back machine though we should go over our terminology. "Open source," the phrase, only goes back to February 3, 1998. The phrase was deliberately chosen to separate the more pragmatic open-source supporters from the more idealistic "free software" community members. Gallons of ink and gigabytes of pixels has been spilled on debating the differences between these two, but for my purposes I'm talking about programs that qualify by either definition.
Does open-source software still seem "new" to you? Think again, its roots go back decades.
Via Aurélien BADET