A 'night game' of baseball is also called a 'nighter' that takes place completely or partially, after the local sunset. It is a game typically played with floodlights. The term 'night game' is used only in reference to a baseball game or other sporting events held outdoors.

A baseball game was first played under electric lighting in 1880, the year after Thomas Edison invented the light bulb. It was an experimental game between two department store teams, and it would take another 50 years before organized baseball would sanction night baseball.

There were a couple of exhibition night baseball games in the early 1900s between organized baseball teams. One of them was in 1909 and the other was in 1927, but the games did not count in league standings.

The first official minor league night game took place in Independence, Kansas on April 28, 1930. After the game in Independence, night baseball "spread like wildfire" across the minor leagues.

The first big-league team to play games at night was the 1930 Kansas City Monarchs of the Negro League, who often played against the House of David baseball team- they carried portable lights mounted on trucks along with their team bus.

The first night game in Major League Baseball occurred on May 24, 1935 when the Cincinnati Reds played the Philadelphia Phillies at Crosley Field. The Reds won the game 2-1.The term 'day game' was subsequently coined to designate the increasingly rare afternoon contest.

More Info: en.wikipedia.org