Take the following as truth: Its timber-framed houses of the 15th, 16th, and 17th centuries are marvelous examples of sturdy Norman architecture, achieving a pleasing irregularity in the way the plaster is set in oblique forms between the solid oak posts and collar beams supporting the balconies.
Then the following statement: "Norman architecture was the most popular architectural style for several centuries." is true, false, or inconclusive?