1901 – The National League Rules Committee decrees that all foul balls are to count as strikes, except after two strikes. To cut the cost of lost foul balls, the committee urges that batsmen who foul off good strikes are to be disciplined. The American League will not adopt this rule for several years. Other new rules: catchers must play within 10 feet of the batter; a ball will be called if the pitcher does not throw to a ready and waiting batter within 20 seconds, and players using indecent or improper language will be banished by the umpire. A ball will be called when a batter is hit by a pitch, but, in a mail vote, the owners will rescind this in April, and a HBP will earn a batter first base.

1896 – The National League adopts changes in the National Agreement. The minor leagues are divided into six classifications based on population, and new draft fees are instituted. The league also forbids players from deliberately soiling baseballs, and declares that “a ball cutting the corners of the home plate, and being requisite height, must be called a strike.” It also empowers umpires to eject players.

1894 – In a series of rule changes designed to help pitchers, all foul bunts will now be called strikes, and the infield fly rule is instituted.