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.
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.
The last Australian troops were evacuated from Gallipoli during World War I.
The Empire of China was established by statesman Yuan Shikai, who declared himself Emperor.
More than 25,000 people marched down New York's 5th Avenue supporting women's suffrage.
The first radio message to go across the Atlantic Ocean was sent from Virginia to Paris.
Sir Cecil Herbert Edward Chubb became the last private owner of Stonehenge, Wiltshire, England.
A tropical cyclone hurricane hit Galveston in Texas.
333 US marines invaded Haiti, beginning a 19-year occupation.
A German U-Boat sinks the RMS Lusitania.
The Treaty of London was signed by Italy, Britain, France, and Russia.
The Ottoman Empire begins its systematic extermination of Armenians.
The German army used chlorine gas for the first time.
The SF F-4 submersible boat sank and killed 21 people near Hawaii.
The US National Advisory Committee for Aeronautics was founded as an emergency measure during WWI.
The United States Coast Guard was formed by an act passed by the US Congress.
Russians defeated Ottoman forces during WWI.
Avezzano earthquake claimed 30,000 lives in Italy.
First Battle of Ypres.
Establishment of Federal Trade Commission (FTC).
During World War I, Japan officially declared war on Germany.
President Woodrow Wilson issued a Proclamation of Neutrality.
The Defence of the Realm Act was introduced in Britain.
The first British troops arrived in France during World War I.
Britain declares war on Germany.
The United States of America declared neutrality at the beginning of World War I.
Germany declared war on France and sent its first wave of troops to Belgium to start the attack.
Franz Ferdinand and his wife Sophie were assassinated, ultimately causing World War I.
