when did they go to electronic ignition?

Mopar was the first to offer electronic ignition standard. Just another useless fact.
I always thought 72 was the switch over year. Never saw a 71 with electronic.
Had at least four 1972 Plymouth/Dodge cars in the family. The 72 Dusters with the 225 and 318 had point ignition. The 72 Charger 318 had point ignition. The 72 Duster 340 had electronic.