According to some authors the religious Templar churches and chapels were built in a way specific to the Order and arranged for the exercise of secret and mysterious rites. Hence the existence of a Templar architectural symbolism, the famous "Templar architecture", whose models would be octagonal buildings or rotunda, like the rotunda of the Temple of Paris.
A series of revolutions in economic and political life transformed Northern Europe. Technology (tools) drove the process, and it was the entrepreneurial spirit of inventive farmers, craftsmen, and what we call today business that triggered change.
