Why did the Romans build their forts square?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific conceptsWhy did the Romans, a logical people, build their forts square? A circle encloses a bigger surface for the same length of wall and lacks hard-to-defend corners. It also generally fits hilltops and other natural defensive spaces better.Peter Taylor-Gooby, Canterbury, Kent Continue reading...