It may be slowly seeping into mainstream beauty trends, but it looks like the sale of tweezers may soon be on the decline: Bushy eyebrows are back! Or did they ever really go out of style? Through the years, the way people have groomed their eyebrows has often been a reflection of the culture and politics of that era.

Actress Keira Knightley let her thick eyebrows do all the talking at a screening of "The Duchess" in New York City, Sept. 9, 2008.
(Michael Loccisano/FilmMagic/Getty Images)