Stonehenge was given over to the British Government by its private landowner.
American Army Corporal Alvin York and seven men attacked a major German gun nest on their own during World War I.
The musical 'Sometime' put on its first performance at the Shubert Theatre on Broadway, New York City, US.
Fanny Kaplan, a Ukrainian Jewish Socialist Revolutionary, attempted to assassinate Vladimir Lenin.
The musical 'Yip! Yip! Yaphank!' by Irving Berlin premiered at the Century Theatre in New York City.
First Woman enlists in the United States Marines.
The first US airmail stamps were issued, costing 24 cents.
The Red Baron is killed.
Nazi-German ace fighter pilot, The Red Baron, shot down his final two victims.
The US daylight saving time went into effect.
The Standard Time Act was signed into US law, introducing Daylight Saving Time.
Moscow becomes Russia's capital city.
The Spanish Flu received its first case in the US.
The first documented cases of the Spanish flu herald a deadly worldwide pandemic.
In the United Kingdom, women over the age of 30 were granted the right to vote.
The state of Mississippi became the first to accept the prohibition of alcohol.
The play 'Why Marry?' opened at the Astor Theatre in New York City.
Finland declared its independence from the Russian Empire.
41 Suffragists were arrested at the White House, Washington, D.C.
The Bolsheviks, led by Vladimir Lenin, and the workers' soviets overthrew the Russian Provisional Government in Petrograd.
Balfour Declaration letter written.
American suffragist Alice Paul was sentenced to seven months in prison for obstructing traffic in Washington caused by the Women's Rights march she organized.
Battle of Polygon Wood begins.
Third Battle of Ypres begins in Flanders
Dutch exotic dancer Mata Hari was put on trial in Paris after being accused of being a spy.
The British Royal family changed their surname to Windsor.
Several internal explosions inside Britain's HMS Vanguard battleship occurred at Scapa Flow, Orkney Islands, Scotland.
Registration of US men aged between 21 and 31 began for troops for WWI.
The first Pulitzer Prize is awarded.
The US Congress passed Selective Service Act.
Eugene Bullard became the first African-American military pilot after acquiring his pilot's license from the Aéro-Club de France.
Vladimir Lenin returns to Russia from exile.
The US declared war against Germany and its Central Powers Alliance in World War I.
The last emperor of Russia abdicates.
The February Revolution begins in Russia.
US President Woodrow Wilson announced that the nation would officially cut relations with Germany.
A Portrait of the Artist as a Young Man is published.
Battle of the Somme ends.
Jeannette Rankin from Montana became the first woman to be elected to the U.S. House of Representatives.
During World War I, as a soldier, Adolf Hitler was injured by a grenade blast.
Tanks were used for the first time in battle, at the Battle of the Somme, during World War I.
Clarence Saunders founded the Piggly Wiggly store in Memphis, Tennessee, US.
The Battle of Somme began.
The first of four fatal shark attacks happened on New Jersey shores.
The Great Arab Revolt against the Ottoman Empire led by Lawrence of Arabia was initiated in Mecca.
Germany and its World War I allies become the first countries to use daylight saving time (DST).
Racer Bob Burman died after crashing his race car in Corona, California.
Oil well gusher fired 1,000 feet into the air near Tampico, Mexico making it the largest in history.
The UK Parliament passed the Military Service Act of 1916, introducing conscription in the UK.
During WWI, The Battle of Gallipoli concluded with an Ottoman Empire victory when the last Allied forces were evacuated from the Peninsula.
