21st, A BAD DAY.
When King Louis XVI of France was a child, he was warned by an astrologer to always be on his guard on the 21st day of each month.
On June 21st 1791, following the French revolution, Louis and his queen were arrested in Varennes, whist trying to escape France.
On September 21st 1791, France abolished the institution of Royalty and proclaimed itself a republic.
Finally on January 21st 1793, King Louis XVI was executed by guillotine.