"The high-wheeled ordinary and the Star bicycles were succeeded by the so-called safety, pioneered by J. K. Starley, nephew of , and by Lawson, to eliminate the danger... of the rider taking a header over the high front wheel. Gradually the size of the high wheel was reduced until, by the middle 1880's, the proportions of the modern safety had been achieved. Curiously, this was a return... to the proportions of the old Hobby Horse... However, the safeties were driven by chain or shaft to the rear wheel from pedals... below the rider. Most of those produced at the turn of the century were chain driven."
January 1, 1970
https://en.wikiquote.org/wiki/Catalog_of_the_Cycle_Collection_(Smithsonian_Bulletin_204)