Chrysler was really the first with electronic 4 wheel ABS as an option for the 1971 Imperial. The system was build by Bendix. ( shades of Bendix having EFI before Bosch released D jet in 1969 )
Mopar Fuselage Styled Full Size Cars
Ford and GM had rear wheel ABS in the same era.
https://www.hagerty.com/articles-videos/articles/2013/04/09/antilock-brakes