Combine the all purpose flour, the whole wheat flour, the bran, baking powder, soda, salt, cinnamon and brown sugar. Cut in the butter. (Or combine in a food processor, just until crumbly.) Add the egg, buttermilk and dates; do not overmix. If the dough seems too sticky to work with, add a couple more tablespoons flour. Shape the dough into a rectangle about 1" thick on a floured surface. Cut into 12 triangles. Bake on an ungreased baking sheet in a preheated 350 degree oven about 25 minutes. Cool on a rack. Makes 12 scones