On the 22nd April 1915, the Second Battle of Ypres began in Belgium.
10th December 1799: France adopts the metric system for weights and measures
10th December 2017
The German fighter pilot Baron Manfred Albrecht Freiherr von Richthofen, better known as the Red Baron, was shot down and killed.
The Treaty of London was signed, which recognised and guaranteed the independence and neutrality of Belgium.
On 8th April 1904, a series of agreements between Britain and France known as the Entente Cordiale were signed.
The United States entered the First World War after Congress declared war on the German Empire.
On the 3rd March 1918 the Treaty of Brest-Litovsk was signed between Russia and the Central Powers.
On the 10th February 1906 the British King, Edward VII, launched HMS Dreadnought – a revolutionary new type of battleship that made all other ships obsolete.
On the 19th January 1915, two German Zeppelin airships known as L3 and L4 dropped bombs on the Norfolk towns of Great Yarmouth and Kings Lynn in Britain’s first experience of an air raid.
The Paris Peace Conference convened to establish the terms of the peace after the First World War.
The Christmas Truce saw soldiers on the First World War’s Western Front take part in a series of unofficial ceasefires.
11th November 1918: WW1 Armistice of Compiègne is signed
11th November 2018
9th November 1989: East Germany opens the Berlin Wall
9th November 2017