Further to the Knights Templar story.....
King Philip IV took refuge from an angry mob one day in one of the Templar buildings. While there, he was astounded to see how much treasure the Knights had stored there (for the industrious souls had spent the past decade or so trading with the Saracens rather than fighting them). Seeing this treasure, Philip realised he could kill two birds with one stone. His royal treasury was empty, and taking the Templar gold would help refill it. Also, at that time, countries did not keep large regular armies. They tended to conscript troops at times of war to save money. With the Holy Wars at an end, the Templars actually had the largest standing army in Europe. As most of them were camped out in France, Philip felt threatened by this.
Having decided to do away with the Templars and take their gold, he gave sealed orders to his secret police etc, with specific orders that they were not to be opened until dawn, Friday 13th (cannot remember which month) 1307. The templars must have got wind of the surprise attack, however, for as Philip's secret police and soldiers made their surprise attacks simultaneously on buildings throughout France, they managed to arrest just seven Templars. All the rest had disappeared, along with most of their gold and weapons, plus the largest fleet in Europe.
The mystery remains to this day, however, of where they all disappeared to. They just seemed to melt away, and never reappeared as the Templars. Strangely, it is said that a few years later at the Battle of Bannockburn, in which Robert the Bruce of Scotland was fighting the English, a small fresh army appeared on the field at the end of the day's fighting. The English appeared to recognise this army, and though it was only small, they fled the field rather than fight it. It is said that this army was composed of Templar Knights, a rumour reinforced by a grave yard found on a small Scotish island containing six Templar graves dating from this period.
Whatever, the Templars seemed to disappear into an underground organisation, most likely becoming years later the foundation of British Freemasonary.
So, Friday 13th. I kind of shy away from it normally, but don't go to great lengths to not do things or worry about it. I spent the day at sea, and we all survived without anything going wrong. I'd call that a good day.