What was the roman legion, and who served in it ?

What were four reasons for the decline of spain as a world power

What was one of the main accomplishments of louis ix? a) he was made a saint after his death b) he eliminated trials by jury. c) he called the first french parliament. d) he ended the taxation system.

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?