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.
Mules are an offspring of a horse and a donkey because when the two  mate there is an odd number of chromosome pairs. Horses have 64  while donkeys only have 62 chromosome p â¦ airs, the offspring will  have 63 pairs, leaving it infertile. If the donkey is the mother,  the animal is called a hinny.