Benjamin Harrison was the twenty-third president of the United States. 

Important events during President Harrison's administration were:

• Land belonging to Native Americans in Oklahoma was opened for settlement on April 22, 1889.

• A dam collapsed near Johnstown, Pennsylvania on May 31, 1889.  The city was flooded and 2,000 people were killed.

• North Dakota was admitted as the 39th state on November 2, 1889.

• South Dakota was admitted as the 40th state on November 2, 1889.

• Montana was admitted as the 41st state on November 8, 1889.

• Washington was admitted as the 42nd state on November 11, 1889.

• The United States population is 63 million with thousands of immigrants arriving daily.

• The Sherman Anti-trust Act was enacted on July 2, 1890.

• Idaho was admitted as the 43rd state on July 3, 1890.

• Wyoming was admitted as the 44th state on July 10, 1890.

• United States troops killed more than 100 Sioux Indians on December 29, 1890 at Wounded Knee, South Dakota.

Benjamin Harrison was:

• the fourth President born in Ohio.

• the tenth President who lived in a state where he wasn't born.

• the third President to remarry.

• the fifth President to marry a widow.

• the second President whose wife died while he was President.