November 11th marks the official end of WWI on that date
in 1918. Major hostilities of WWI were formally ended on
the 11th hour, on the 11th day, of the 11th month.
The red poppy has become a familiar emblem of
Remembrance Day due to the poem "In Flanders Field".
These poppies bloomed across the worst battlefields of
Flanders, in WWI, their bright red color is an appropriate
color for the blood spilt in war.