 It was really the records of every single ship that passed through the Suez Canal in the 19th century and even into the 20th century. Unbelievable records of the name of the ship, what it was carrying, how much it weighed, the water depth. I mean, everything you could imagine that went into it. What a story it tells. It tells a lot about the history of the Suez Canals. And it tells a lot about the management of the canal in this era.