President Franklin Delano Roosevelt had a mild case of triskaidekaphobia — he didn’t like the number 13. He refused to travel on the 13th day of any month and would not sit down with 13 at dinner or host a dinner party with 13 guests.
FDR especially hated Friday the 13th. He would never start an important trip on a Friday, particularly the 13th. But as it turned out, Friday the 13th wasn’t out to get him after all.
FDR died on Thursday the 12th (April 12, 1945).