So, our new house is obviously pretty traditional in style. While it is not actually a historic home, I do like the character and how it looks like it could have been around for hundreds of year. In these traditional colonial homes windows with grids (also called muntins) are the norm. The style stems from the old times when glass was only available in small pieces and little window panes had to be pieced together to make one big window. 

Today those grids are purely decorative and meant to complement the traditional style. The front of the house would look completely different with plain windows and lose a lot of its charm.