The bowler is allowed 10 frames in which to knock down pins, with frames one (1) through nine (9) being composed of up to two rolls. The tenth frame is composed of up to three rolls: the bonus roll(s) following a strike or spare in the tenth (sometimes referred to as the eleventh and twelfth frames) are fill ball(s) used only to calculate the score of the mark rolled in the tenth. If neither a strike nor a spare is achieved in the tenth frame, no bonus roll is awarded.
A site in Southampton, England claims to be the oldest lawn bowling site still in operation, with records showing the game has been played on the green there since 1299.  The first written reference to bowling dates to 1366, when King Edward III of England banned his troops from playing it so that they could focus more on their archery practice.  It is believed that King Henry VIII bowled using cannonballs. Henry VIII also famously banned bowling for all but the upper classes, because so many working men and soldiers were neglecting their trades. 
In Germany the game of Kegel ( Kegelspiel ) expanded. The Kegel game grew in Germany and around other parts of Europe with Keglers rolling balls at nine pins, or skittles, in a diamond formation (1-2-3-2-1).   To this day, bowlers in the United States and United Kingdom are also referred to as "keglers".