There’s no period in “Dr. Pepper.” It was removed because the old logo font made it look like “Di: Pepper.”
100 Mind-Blowing Di Facts
The world’s oldest surviving bank is “Banca Monte dei Paschi di Siena,” which was founded in 1472 and is currently Italy’s 3rd largest bank.
Dr Pepper does not have a period. This is mainly due to the font of the logo that would make it look like ‘Di: Pepper’. Many were confused by this, hence the change.