The Romans used a short, flat blade.

FORBES: No. 8 The Sword

On the next hole Davis clambers into a sand trap with me to show me how to open the blade of my sand wedge for a short shot.

FORBES: Magazine Article

One reason Blade Runner was so interesting and complex was the very reason Alyssa enjoyed the above short: it turned the fear of the powerful robot Other on its head, and granted them their humanity and their frailty, and ours.

FORBES: Using Robots To Combat Prejudice