'Project Runway': Fashion History Trips Up Designers, Don't Know Who Coined 'Little Black Dress' (VIDEO)

Fashion is about more than just the clothing. It's also about the history of fashion, and that history is what tripped up some of the contestants on this week's "Project Runway." As part of the challenge, the designers competed in a fashion quiz, and some of them failed miserably.

“What designer made the popular term ‘Little Black Dress?’” asked Marie Claire editor-in-chief Anne Fulenwider.

Contestant Dom Streater blanked. "Oh shoot," he said. "My teacher’s going to kill me.”

“Why can’t these questions be about wallpaper, or photography?" asked Miranda Kay Levy. "I have no idea about the majority of these questions.”

Because it's a fashion competition, maybe?

The "LBD" phrase has even become fairly common knowledge: many people not in the fashion industry knowing that it was Coco Chanel who coined the expression.

In his recap of the episode, Zap2It's Billy Niles slipped in an "Oof" for this lapse in memory. Former "Project Runway" designer Michael Costello, blogging for Hollywood Life, shamed both Dom and Miranda for not knowing their fashion history. He said they need to go back to school.

Miranda might have the time to do that now, as she got eliminated. It wasn't for her lack of fashion knowledge, though, it was for her lack of innovation. The judges felt she didn't push herself enough this week.

The competition continues on "Project Runway," Thursdays at 9 p.m. ET on Lifetime.

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