After nearly four and a half years of cataclysmic conflict, World War I ended.
American Army Corporal Alvin York and seven men attacked a major German gun nest on their own during World War I.
Registration of US men aged between 21 and 31 began for troops for WWI.
The US declared war against Germany and its Central Powers Alliance in World War I.
US President Woodrow Wilson announced that the nation would officially cut relations with Germany.
The Battle of Somme began.
The last Australian troops were evacuated from Gallipoli during World War I.
The Treaty of London was signed by Italy, Britain, France, and Russia.
Unofficial ceasefires sprang up across World War I’s Western Front.
The First Battle of the Marne began during World War I.
During World War I, Japan officially declared war on Germany.
President Woodrow Wilson issued a Proclamation of Neutrality.
The first British troops arrived in France during World War I.
The United States of America declared neutrality at the beginning of World War I.
Franz Ferdinand and his wife Sophie were assassinated, ultimately causing World War I.