On April 14, 1865, President Abraham Lincoln acted on the advice of his friend and Idaho's First Territorial Delegate William H. Wallace, and appointed Milton Kelly to the Idaho Territorial Supreme Court. On the same day, President Lincoln named James H. Alvord as Idaho's Territorial Marshall. That evening the President was assassinated at Ford's Theatre.

The Titanic sank off the coast of Newfoundland on April 15, 1912, after it struck an iceberg during its maiden voyage.

Grace Edgington Jordon was born on April 16, 1892. She taught journalism, English, and fiction writing at four Idaho universities. An accomplished writer, she is credited with acquainting people throughout the nation and world with the many facets of Idaho. Her best known book, Home Below Hells Canyon, details the lives of the Jordan family on their Snake River Ranch and has been translated into six languages. Mrs. Jordon served as Idaho's First Lady from 1950 through 1954.

Paul Revere rode from Charleston to Lexington on April 18, 1775, to warn Massachusetts colonist of the arrival of British troops during the American Revolution. The "shot heard around the world" was fired the next day when colonial Minute Men took on British Army regulars at Lexington and Concord.

A 16- year old Boise boy was named the Nation's Best Young Orator on April 19, 1941, when Frank Church took first place in the American Legion's National Americanism oratorical contest. The prize was a $4000 scholarship to the college of his choice.

Sirhan Sirhan was convicted on April 17, 1969, of the murder of Robert F. Kennedy.