The block-style layout—in which quilt blocks of the same size are arranged in a grid—is considered to be an iconically American quilt design, but it is only relatively recently that this layout became prevalent in the United States. How did this layout develop and what other traditions influenced it? This series of three articles explores one of the many influences in American quilting: early European patchwork traditions. The series charts the impact of European traditions on colonial and early-Euro-American patchwork designs, as well as the period of transition from European influenced layouts and patterns to the block-style layout in the United States. This final article explores the changes that led to the block-style layout that is so prevalent in American quilts today.