Ask when tennis was invented and you very quickly find yourself with two answers, both true and both slightly awkward at the dinner table. If you mean the modern game with rackets, a net, service boxes and neatly mown grass, tennis took shape in the 1870s in Britain. If you mean the broader idea of knocking a ball back and forth by hand or racket, the story reaches much further back, into medieval Europe. So, when was tennis invented? The neat answer is this: modern lawn tenn
