On a related note, Romans wrote sums at the top of a stack of numbers they were adding. http://www.etymonline.com/index.php?allowed_in_frame=0&search=Sum http:

On a related note, Romans wrote sums at the top of a stack of numbers they were adding. http://www.etymonline.com/index.php?allowed_in_frame=0&search=Sum http://www.etymonline.com/index.php?allowed_in_frame=0&searc... Summaries at the top, always.