3 Lawn Tennis, or what we know in America as conventional tennis, became popular in America during 1870's 4 . The biggest difference between this form of tennis and earlier forms of tennis was that in lawn tennis there were no side or end walls in which to play the ball off of 5 . The courts in America are open air type of courts. Present day courts vary in surface type. Indoor courts at a club or resort are usually made of some sort of hard turf or clay.
Outdoor courts are mostly grass, but there are some outdoor courts that are made of clay.
Public courts now are usually made of concrete to withstand the weathering. All tennis courts have the same dimensions, but no two tennis courts are exactly alike 6 . An example of an early tennis court. Tennis courts used today are basically the same as the ones played on back in the earlier centuries. The court is divided into two halves by a net.