Bowling in different variations has been played for many centuries, outdoors and indoors.
The historical Skittle Games (still played in some countries) are the forerunners of modern bowling.
Today Bowling is a popular recreational activity played in special indoor bowling facilities in more than 90 countries.
Bowling is a target sport in which the player rolls a ball down a lane aiming to knock down the pins/skittles.
A strike is achieved when all pins are knocked down on first roll; when it takes two rolls, a spare is achieved.