
LBW stands as Leg Before Wicket
In cricket, LBW stands for leg before wicket. The ball must impact outside of the batsman's line of sight in order to be declared out. If the ball was not played with intent, it is unlikely that the batsman will be out. When making a LBW decision, the umpire must exercise his best judgement.
LBW is often used to describe a low ball which has struck the batsman's pads first. Depending on the pitch, the ball could be either hard or plumb. The wicket condition may also influence whether the ball is a leg before wicket. If the wicket is hard, the delivery will have a greater chance of clearing the stumps than if the wicket is slow.
LBW is when a part of the batsman is hit by a ball.
LBW in cricket is a term that refers to a player being dismissed after a part of his body has been hit by a pitch. To be considered for LBW the ball must not touch the batsman's skin or pass between the wickets. This means that the batsman must have tried to hit the ball.

While it is possible for the umpire to make an error on LBW appeals, television replays are available to show if the umpire made the correct decision. This can help a batter fight an LBW appel.
LBY means that a part or all of the batsman’s body is struck with a ball.
An LBY is a run a batsman gets when a ball hits the batter's body, arm or boundary. If it does, the run will be credited to the batting side. A LBY is also a boundary allowance. If the ball strikes a part or all of a batsman's leg, it is called a leg bye.
To qualify for LBY a batsman must hit a ball or a part on his body. Sachin Tendulkar, for example, was run out by a ball that hit his shoulder. Sometimes, the batsman might intentionally hit the ball to protect his wicket. In these situations, a batsman is not allowed to score on the second hit.
Changes in wicket cricket since it was popular in the 18th century
The game of cricket developed significantly during the 18th century. In 18th century England, betting was allowed and the wealthy patrons formed select XIs. It became very popular, and attracted large crowds. Cricket was also exported overseas to North America colonies and West Indies. It became increasingly popular and was soon being played throughout England.

The original wicket consisted of two forked sticks about one foot apart. A bail was created by adding a third stick to the wicket in the 18th Century. This was because the ball often ran between the sticks, evicting the batsman. Before the batsman could ground his bat, the fielders had to place it in the hole.