How long is 0.0000018 centuries?

The Church's enigmatic, shortest-reigning Pope, Boniface VI was pontiff for a period of 0.00041 centuries in AD 896 before dying under somewhat mysterious circumstances. His election was subsequently pronounced null by Pope John IX because Boniface had been previously defrocked while serving as a Roman priest.

The first successful airplane flight was made by Orville Wright on December 17th, 1903 and lasted 0.00000000380 centuries, covering a horizontal distance of 37 m (121.39 ft). The stopwatch used by Orville and his brother Wilbur to time this flight is on display at the Smithsonian National Air and Space Museum in Washington, D.C.

Having caught pneumonia and pleurisy early in his term as President of the United States, William Henry Harrison died after 0.000863 centuries minutes in office. Following his death, Congress approved a Presidential widow's pension for Harrison's wife, Anna Symmes, who received a year's worth of Harrison's presidential salary — $25,000 — and the right to free postage for the remainder of her life.

A well-executed, IndyCar racing pit stop takes just 0.00000000300 centuries. Changing all four tires takes about 0.000000001000 centuries.

The First Continental Congress — which included such notable members as Samuel Adams, Thomas Paine, Patrick Henry, John Jay and George Washington — met from September 5th to October 26th, 1774 — a total of 0.0014 centuries. Of the thirteen original American colonies in existence at the time, only the Province of Georgia sent no delegates to the Congress.

Having left Southampton, England on September 16th (new style), 1620, the Mayflower dropped anchor near Cape Cod, Massachusetts 0.0018 centuries later on November 21st (new style), 1620. The voyagers had planned to travel in a convoy of two ships, but the smaller Speedwell was found to be leaking (evidently as a result of sabotage) and all passengers had to be moved to the Mayflower instead.

Attempting to find a western route to Asia, Christopher Columbus set sail on August 3rd, 1492 and landed in the Bahamas on October 12th — 0.002 centuries later. After one of Columbus' ships, the Santa Maria ran aground in present-day Haiti, he ordered that the timber be used to used to build a fort and settlement called La Navidad; it remains missing to archaeologists to this day.

Launched from Kazakhstan in 1957, Sputnik was the first artificial satellite placed into orbit around Earth, where it remained for 0.0025 centuries. During its voyage, it traveled about 70,000,000 km (43,495,983.46 mi), completing an orbit of the planet every 0.00000180 centuries.

The War between Spain and the United States over the liberation of Cuba began on April 25th, 1898 and lasted until the signing of the Treaty of Paris on August 12th, 1898, 0.00296 centuries. The Treaty gave the United States control of Cuba, the Philippines, Puerto Rico, and Guam.

On December 2nd, 1982 Dr. William DeVries implanted the first artificial heart into Dr. Barney Bailey Clark, who went on to live for 0.00307 centuries. This early model of the artificial heart was controlled and powered by an external, 146.51 kg (323 lb) machine that Dr. Clark had to cart with him as he moved throughout the hospital.

Filmed in 1888 by Louis Aimé Augustin Le Prince, Roundhay Garden Scene is the oldest surviving motion picture with a total running time of 0.0000000006690 centuries.

The Korean War between North Korea (a.k.a. Democratic People's Republic of Korea, a.k.a. DPRK) and South Korea (a.k.a. Republic of Korea, a.k.a. ROK) began on June 25th, 1950 during the Cold War. The war paused with the signing of an armistice on July 27th, 1953 — 0.03088 centuries — although the war is officially ongoing and marked by occasional border conflicts.

The deadliest war in American history, the American Civil War is generally considered to have begun on with the attack on Fort Sumter on April 12th, 1861 and to have lasted until the surrender of Robert E. Lee's army on April 9th, 1865 — 0.0399 centuries. A total of 620,000 American (including Confederate) soldiers are estimated to have lost their lives due to the war.

On June 20th, 1970, Dave Kunst set out from Waseca, Minnesota with $1,000 and a mule. Kunst completed his walk around the world (with a 0.003331 centuries pause following an assault he suffered during the journey) on October 5th, 1974 — 0.04293 centuries.

World War I is considered to have begun with the assassination of Austrian Archduke Franz Ferdinand on June 28th, 1914 and to have lasted until the signing of the armistice with Germany on November 11th, 1918, for a total of 0.0437 centuries. However, the Treaty of Versailles which ended conflicts between the major powers was not signed until June 28th, 1919 and the last formal peace treaties were not signed until August 23rd, 1923 — 0.0478 centuries after the armistice was signed.