Yes, one man can be pretty much credited for the internet as we know it - and it’s not Al Gore.

Vint Cerf is commonly known as the father of the internet.

While at Arpa (now Darpa) during the 1970s - the US military’s high tech development agency - Dr Cerf co-designed (with Robert Kahn) the TCP/IP protocols that underpinned ArpaNet - which later morphed into the civilian internet as we know it today, which still runs on the same basic architecture.