If you want to change selection, open original toplevel document below and click on "Move attachment"
Parent (intermediate) annotation
Open it d Research Projects Agency (ARPA). Work by Leonard Kleinrock, Thomas Merrill and Lawrence G. Roberts on packet-switching theory pioneers the way to the world’s first wide-area computer network. <span>Roberts later goes on to publish a plan for the ARPANET, an ARPA-funded computer network that becomes a reality in 1969. Over the following years, the ARPANET grows. <span>