The course covers early American history 'at' a 'gallop'. [=very quickly; in a short amount of time]
The course begins with a quick 'gallop' through early American history.
He mounted his horse and 'galloped' off to sound the alarm.
(..) They're harnessed wrong. Aliyah should be here. Kadeem? Mind your business. Listen to me. If you take them into a gallop... (URGING HORSES) ILDERIM: Judah. ...they're going to bolt. (URGING HORSES) (KADEEM YELLING) (..)2016 Ben-Hur