In the 15th century, the Swiss developed pike tactics that used closely packed deep columns. A reconstruction of the deployment of Zürich forces in 1443 gives a formation 56 men wide by 20 deep, the formation having a width of 168 ft and a depth of 140 ft. The Swiss main formation at the Battle of Morat consisted of 10,000 men, and experiments have estimated its area of as little as 60 m by 60 m. The knightly cavalry of the Middle Ages could also fight in close order, stirrup to stirrup.