E.F. Codd’s 1970 paper on the relational data model revolutionized the database industry, laying the groundwork for today’s most widely used business data format. The paper introduced key concepts like data independence and normalization, shaping the way data was stored and accessed. In the 1970s, the rise of relational database products like SQL marked a shift towards more efficient, accessible data management. This era also saw the development of innovative systems like IDS and IMS, paving the way for groundbreaking projects at IBM and UC Berkeley. The SIGFIDET 1974 meeting marked a turning point, establishing the relational model as the new standard in data management.
https://cacm.acm.org/research/50-years-of-queries/