The traditional focuses of sociology include social stratification, social class, social mobility, religion, secularization, law, sexuality and deviance.
These were called calceus mulleus, and the name may have been shortened to mules by English speakers. Hence the primary difference between mules and clogs in early days was that clogs were likely to be worn by working people, and mules were fancier and favored by the aristocracy.
Definition of MULE. 1. a: a hybrid between a horse and a donkey; especially: the offspring of a male donkey and a mare b: a self-sterile plant whether hybrid or not c: a usually sterile hybrid. 2.: a very stubborn person. 3.edical Definition of MULE. : a hybrid between a horse and a donkey; especially: the offspring of a male donkey and a mare.