IEEE Milestones: the first submarine transatlantic telephone cable (TAT-1), 1956, and the transatlantic fibre-optic submarine cable (TAT-8), 1988

evidence

Supports the TAT-1 route (Gallanach Bay near Oban to Clarenville, Newfoundland), its 36 telephone circuits and its 25 September 1956 inauguration, and the TAT-8 route, its 280 Mbit/s on two working fibre pairs, its roughly 40,000 circuits and its entry into service on 14 December 1988. V55 verification basis: retrieved by search, not opened. One retrieved source gives 26 rather than 25 September 1956 for TAT-1 entering service, and this pack records that discrepancy instead of resolving it.

A evidence is not a place. Drawing it on a map would assert something about the world that no stored fact supports.