What two breeds made the English Staffordshire terrier?

The English Staffordshire Terrier is believed to have descended from two breeds:

* Old English Bulldog: Known for their strength, tenacity, and bull-baiting abilities.

* Black and Tan Terrier: This breed was used for hunting and vermin control, bringing speed and agility to the mix.

While the exact lineage is debated, it is widely accepted that these two breeds were key to the development of the English Staffordshire Terrier.