See if you can find each evolutionary step in order. After all, you can always refresh and start over. Good luck, and farewell. Try not to get trapped in so easily, your body gets tired the more active your mind is. The ARPANET (Advanced Research Projects Agency Network), was the first public computer network - specifically designed for researchers/ scientists/ academics to share information and collaborate on research projects. Established in 1969, its lifespan of 20 years saw the first glimpses of an information-based society, and exploration of how technology could work with us as well as for us.