How did they do graphics in old movies?

Question

I recently watched “Citizen Kane” from 1941. The whole thing has graphics (credits, flashbacks and flash forwards.) Did they use computers?

Edit: it also had those graphics fade in/out.

In: Technology

Answer 1

Citizen Kane invented a lot of techniques as well. Spielberg once said he likes to watch it once a year, and still wonders exactly how some shots were done.