 
 <prompt> Wetin dem dey call loop wey dey inside chain? Given di last question, write small tori wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: For di 1970s, computer engineers for research institutions across di United States begin dey connect dia computers together using telecommunications technology. Dem fund di project with money from ARPA (wey be DARPA now), and di computer network wey dem create na di ARPANET. Di technologies wey make ARPANET possible spread and evolve. 