Please note that September 11 is blackened on each of the yearly calendars to mark the solemn sadness that took place on that day in year 2001.
"It is rather for us to be here dedicated to the great task
remaining before us -- that from these honored dead we take
increased devotion to that cause for which they here gave
the last full measure of devotion -- that we here highly resolve
that these dead shall not have died in vain; that this nation
shall have a new birth of freedom; and that this government
of the people, by the people, for the people,
shall not perish from the earth."
-- Abraham Lincoln, Gettysburg Address