A very selective list of historical events that took place during the month
April 2, 1513: Ponce De Leon lands at what is now St. Augustine (today the oldest city in the continental U.S.) and claims the region for Spain.
April 4, 1887: Susanna M. Salter becomes mayor of Argonia, Kan. -- and the first woman to be elected mayor in the United States.
April 6, 1896: The first modern-day Olympic Games are held in Athens, Greece, some 1,500 years after the last one.
April 9, 1865: The Civil War officially comes to an end with the surrender of Gen. Robert E. Lee's forces to Gen. Ulysses S. Grant in the Appomattox Court House in Virginia.
April 12, 1861: The Civil War officially begins as Confederate troops fire on Fort Sumter, controlled by Union forces, in Charleston, S.C.
April 15, 1912: The luxury liner Titanic sinks in the frigid waters off the coast of Newfoundland, taking more than 1,500 passengers with it.
April 18, 1906: A massive earthquake and resulting fire strike San Francisco, causing more than 4,000 deaths and the destruction of more than 10,000 acres of property.
April 22, 1864: An act of Congress decrees that "In God We Trust" will appear on all newly minted U.S. coins.
April 23, 1564: William Shakespeare was born in Stratford-on-Avon, England.
April 24, 1800: The Library of Congress was established in Washington, D.C. Today it holds the distinction of being the oldest federal cultural institution in the U.S. and the world's largest library.
April 30, 1789: George Washington is administered the oath of office in New York City, becoming the first U.S. President.
Source: Meetings & Conventions