Federal system countries include Argentina, Australia, Austria, Belgium, Bosnia and Herzegovina, Brazil, Canada, Comoros, Ethiopia, Germany, India, Iraq, Malaysia, Mexico, Pakistan, Russia, Saint Kiss and Nevis, Sudan, Switzerland, United Arab Emirates, United States,
As the exercise explains, race is grounded in physical attributes which are then transformed to have social meaning (Darker or lighter skin, height, facial traits, etc.). Ethnicity, on the other hand, is a cultural-historical identification with a group, just like this explains, an identity. An ethnic group is a group of people who identify with eachother. The cause of this identity could be similar traits, geography, language, etc.
A system that is used to observe people or objects that are on the move with providing a time ordered sequence of the location data for processing further.
Forced Germanic and Persian tribes into Roman lands, undercut Rome's tax base, and demanded expensive tribute. Rome was then always in constant warfare, began losing arts, and science. Basically sent the Roman empire backwards.