The large-scale connectivity infrastructure at the Paris Olympics is a culmination of years of innovation.David Ramos/Getty ImagesThe Paris Olympics has one of the world's largest private 5G networks.It's the culmination of years of fine-tuning over successive Olympic Games — as this timeline shows.This article is part of "5G Playbook," a series exploring one of our time's most important tech innovations.The Olympic Games are perhaps the world's best-known sporting competition, broadcast to billions worldwide.Behind the scenes, intricate internet-connectivity infrastructure broadcasts every twist and turn to those watching from home, while keeping millions in Paris connected with always-on data.