Codd Publishes 'A Relational Model of Data'

Edgar F. Codd's seminal paper, 'A Relational Model of Data for Large Shared Data Banks,' is published, laying the theoretical foundation for relational databases.

Significance

This publication introduced the revolutionary concept of organizing data into simple tables based on mathematical set theory, promising data independence and a declarative approach to data management. It was the intellectual genesis of all subsequent relational database systems.