At one time I never knew where donkeys ( and mules came from ) .
They were in western movies helping out the gold miners, and the bad cowboys used to harass the Mexican rider and donkey. The poor had a donkey. the more well off a horse.
Mary rode on one for the return to origin for the census.
This article clarifies that they were around a long time, way farther back than the Romans.
Great posting with new information to be absorbed and hopefully retained.