The first question at any boundary is what it is made of, because that was decided entirely by what was to hand. The second is what shape it is, which…
The useful habit is to ask what each feature is for rather than what it looks like. Nearly every one addresses a specific difficulty, and several address problems that are…
Source: Wikipedia
There is a problem in intelligence work that has no clean solution and recurs constantly.
Information obtained secretly is only useful if it is acted upon. Acting on it…
Source: Wikipedia
There is a standard way of looking at old maps that produces a confident and entirely wrong conclusion.
The method is to compare the map against a modern one…
Source: Wikipedia
There is a difference between a chronicle and a survey, and it is the difference between knowing what somebody thought was important and knowing what was there.
Chronicles record…
Source: Wikipedia
There is a particular category of historical event that is easier to document than to explain, and this is the largest example available.
For several centuries before 1200 BC,…