> The inspiration for safe borrowed references comes in two ways from the Cyclone programming language, a joint development effort by AT&T and Cornell University. The notion of a borrowed reference is adapted from Cyclone’s polymorphic restricted alias pointers. Additionally, Cyclone’s safe memory management focused on regions (which are usually arenas). In order to ensure memory safety, Cyclone pointers could be annotated with a named region qualifier preceded with a back-tick (making them look very much like Rust’s apostrophe-based lifetime annotations).
> The inspiration for safe borrowed references comes in two ways from the Cyclone programming language, a joint development effort by AT&T and Cornell University. The notion of a borrowed reference is adapted from Cyclone’s polymorphic restricted alias pointers. Additionally, Cyclone’s safe memory management focused on regions (which are usually arenas). In order to ensure memory safety, Cyclone pointers could be annotated with a named region qualifier preceded with a back-tick (making them look very much like Rust’s apostrophe-based lifetime annotations).
source: https://pling.jondgoodwin.com/post/lifetimes/