When you say "GB were indeed 2³⁰", do you mean it was officially defined to be that, or that it was common practice for people to call it that. G- was officiall

When you say "GB were indeed 2³⁰", do you mean it was officially defined to be that, or that it was common practice for people to call it that. G- was officially defined in 1960 to be 10^9.