do you mean the UK 'Tamla Motown' label?
it did start in 1965, prior to that, Motown records were released on Stateside, Oriole and Fontana. until EMI decided to give them their own label.
Motown did start in 1959...
I was there, Derek n Ray got hammered , seriously hammered. Phil Coulter was very popular, thankfully short lived. Esperanto, the same.
4/4 with good orchestration, seemed to be the recipe for dancefloor reaction.