Deaths on April 4

Edmond Hébert, French geologist and academic (b. 1812)

Failed empty result.

1 Jun

Herman Hollerith
The United States Census Bureau begins using Herman Hollerith's tabulating machine to count census returns.
2 Jul

Sherman Antitrust Act
The U.S. Congress passes the Sherman Antitrust Act.
12 Sep

Rhodesia
Salisbury, Rhodesia, is founded.
24 Sep

1890 Manifesto
The Church of Jesus Christ of Latter-day Saints officially renounces polygamy.
25 Sep

Sequoia National Park
The United States Congress establishes Sequoia National Park.