holiday = (de => (common =>( xmas =>[25.12.,26.12.,27.12],
                             newyear =>[01.01.]),
                  saxony =>( summer =>[dd.mm.,dd.mm.],
                             autumn =>[dd.mm.,dd.mm.]),
                  bavaria =>( summer =>[dd.mm.,dd.mm.],
                             autumn =>[dd.mm.,dd.mm.])
                  ),
           us =>(common =>( xmas =>[25.12.,26.12.27.12],
                             newyear =>[01.01.]),
                           ....),
                 ....)
           );