What does Marcellinus mean when he describes the Huns as being “glued to their horses”?

He meant that the huns were well-trained Cavalries which were high skilled in fighting from their horses.  It seemed impossible to knock them down with weapons.

Explanation:

The huns were a group of nomadic warriors that conducted series of attack to various territories owned by European empires. They had the reputation as capable horsemen and terrorize many Empires in Europe due to their fighting prowess.

They're originated from Asian continent, but historians can't really pinpoint the exact country where they're originated. (The most popular consensus is that they're originated from modern day Kazakhstan)

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.

experiments.

surveys.

questionnaires.

interviews.

case studies.

participant and non-participant observation.

observational trials.

studies using the delphi method.