Single-handed sailing circumnavigation, as it was contained within the southern hemisphere; however, he made the first single-handed passage of the three great capes, and indeed the first successful single-handed passage of Cape Horn. With only three landfalls, Vito Dumas described the legs of his trip as the longest that had been made by a single-hander, and in the most ferocious oceans on the Earth. Organised single-handed yacht racing was pioneered by Britons "Blondie" Hasler and Francis Chichester, who conceived the idea of a single-handed race across the Atlantic Ocean. This was a revolutionary concept at the time, as the idea was thought
Single source of truth Single source of truth In information systems design and theory, single source of truth (SSOT) is the practice of structuring information models and associated data schema such that every data element is stored exactly once. Any possible linkages to this data element (possibly in other areas of the relational schema or even in distant federated databases) are by reference only. Because all other locations of the data just refer back to the primary "source of truth" location, updates to the data element in the primary location propagate to the entire system without the possibility of a duplicate value somewhere being