this new school of thought and design with strongly implement traditional elements using 20th-century technologies and modernist architectural principles from europe appeared mainly in the 1920s and 1930s. indigenous roofs were singled out for particular attention and there were many interesting syntheses of local and european forms and construction techniques. the interest of modernists in the dynamic interplay of geometrical elements was soon incorporated into the new style and led to bold experiments that combined these structural forms with traditional vernacular ornamentation. thomas karsten and henri maclaine pont were among the architects active in developing this movement.