Unlucky Twenty First
When Louis XVI of France was a child, an astrologer warned him to always be wary of the 21st of each month. So terrified was the young child that thereafter he refused to undertake any important business on that day.
In spite of his precautions, however, he became caught up in larger events on that date. On 21 June, 1781, Louis and his queen, Marie Antoinette, were arrested at Varennes by anitroyalists in their attempt to flee France during the revolution. On 21 September the following year, France abolished the institution of royalty and proclaimed itself a republic. And on 21 January, 1793, Louis XVI was executed.
—Holiday, November 1962, p.52