What was the ARPANET and who used it?
ARPANet was the forerunner to the modern internet. After World War II the American Government set up the Defence Advanced Research Projects Agency (DARPA). One of their tasks was that they had to design a communications system that would not collapse if part of it was knocked out by a bomb. ARPANet was the result of this, in about 1969. In the following decades more networks were set up and linked together. Common standards between all these systems were agreed upon and in 1989, the internet came into being.