Definitely will need to give credit to many folks. A good start would be DOD’s APRNET project and folks at BBN. If you go higher level Internet – into www apsects, emails, etc. You would need to include others like Tim Berners Lee. Might even consider giving credit to some of the lower level protocols on the Internet such as Ethernet, and then include folks like Bob Metcalfe and his team. In a nutshell, some amazing people working well together.