November 11 is, in France & the UK & others, the day of the end of the Great War (1914-1918), a worthwhile day to celebrate.
Novembre 11 is, in the USA, the day when Nat Turner, a black rebel slave, was executed in 1831: https://calendar.eji.org/racial-injustice/nov/11, also a worthwhile day to remember.
Some precisions on Nat Turner’s rebellion: https://nmaahc.si.edu/explore/stories/nat-turners-rebellion
And Wikipedia: https://en.wikipedia.org/wiki/Nat_Turner%27s_Rebellion#Rebellion