Audio book answered my calculation

I like to listen to audio books while working. Yesterday evening I was making a a stock list while listening to Game of thrones audio book. It was playing the part where Ned Stark describes how the Iron throne was made. "The Iron Throne was full of traps for the unwary. The songs said it had taken a thousand blades to make it, heated white-hot in the furnace breath of Balerion the Black Dread. The hammering had taken fifty-nine days." I stared at my calculator for what had happened. The total of the item I was calculating was 59. That's one odd coincidence. Edit: spellings.