Rome wasn’t as big on cavalry as later European armies because the stirrup had not yet been invented at the time. The stirrup appeared only in the late first mi

Rome wasn’t as big on cavalry as later European armies because the stirrup had not yet been invented at the time. The stirrup appeared only in the late first millennium BC/early first millennium AD in Asia, and incidentally was a big part of why the nomadic steppe societies of Asia were able to conquer their way so far into the west during the Age of Migrations.