(A) June 28, 1911
(B) July 28, 1918
(C) November 11, 1911
(D) ** November 11, 1918
EXPLANATIONS BELOW
Concept note-1: -On Nov. 11, 1918, after more than four years of horrific fighting and the loss of millions of lives, the guns on the Western Front fell silent. Although fighting continued elsewhere, the armistice between Germany and the Allies was the first step to ending World War I.
Concept note-2: -The Armistice of 11 November 1918 was the armistice signed at Le Francport near Compiègne that ended fighting on land, sea, and air in World War I between the Entente and their last remaining opponent, Germany.
Concept note-3: -These memorial gestures all took place on November 11, giving universal recognition to the celebrated ending of World War I fighting at 11 a.m., November 11, 1918 (the 11th hour of the 11th day of the 11th month). The day became known as “Armistice Day.”
Concept note-4: -The Armistice, an agreement to end the fighting of the First World War as a prelude to peace negotiations, began at 11am on 11 November 1918. Armistice is Latin for to stand (still) arms. To this day we mark Armistice Day around the United Kingdom with a Two Minute Silence at 11am on the 11th day of the 11th month.
Concept note-5: -At the 11th hour on the 11th day of the 11th month of 1918, the Great War ends. At 5 a.m. that morning, Germany, bereft of manpower and supplies and faced with imminent invasion, signed an armistice agreement with the Allies in a railroad car outside Compiégne, France.